Lost Leonin

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Leonin Armorguard

When Leonin Armorguard enters the battlefield, creatures you control get +1/+1 until end of turn.

Ajani, Strength of the Pride

+1: You gain life equal to the number of creatures you control plus the number of planeswalkers you control.
−2: Create a 2/2 white Cat Soldier creature token named Ajani's Pridemate with "Whenever you gain life, put a +1/+1 counter on Ajani's Pridemate."
0: If you have at least 15 life more than your starting life total, exile Ajani, Strength of the Pride and each artifact and creature your opponents control.

Warrior's Stand

Cast this spell only during the declare attackers step and only if you've been attacked this step.
Creatures you control get +2/+2 until end of turn.

King of the Pride

Kraken's Eye

Whenever a player casts a blue spell, you may gain 1 life.

Wurm's Tooth

Whenever a player casts a green spell, you may gain 1 life.

Arahbo, Roar of the World

Eminence — At the beginning of combat on your turn, if Arahbo, Roar of the World is in the command zone or on the battlefield, another target Cat you control gets +3/+3 until end of turn.
Whenever another Cat you control attacks, you may pay {1}{G}{W}. If you do, it gains trample and gets +X/+X until end of turn, where X is its power.

Flourish

Creatures you control get +2/+2 until end of turn.

Flower

Search your library for a basic Forest or Plains card, reveal it, put it into your hand, then shuffle.

Flower // Flourish

Stir the Pride

Choose one —
• Creatures you control get +2/+2 until end of turn.
• Until end of turn, creatures you control gain "Whenever this creature deals damage, you gain that much life."
Entwine {1}{W} (Choose both if you pay the entwine cost.)

Overcome

Creatures you control get +2/+2 and gain trample until end of turn.

Frondland Felidar

Vigilance
Creatures you control with vigilance have "{1}, {T}: Tap target creature."

Nacre Talisman

Whenever a player casts a white spell, you may pay {3}. If you do, untap target permanent.

Ajani, Caller of the Pride

+1: Put a +1/+1 counter on up to one target creature.
−3: Target creature gains flying and double strike until end of turn.
−8: Create X 2/2 white Cat creature tokens, where X is your life total.

Penumbra Bobcat

When Penumbra Bobcat dies, create a 2/1 black Cat creature token.

Felidar Cub

Sacrifice Felidar Cub: Destroy target enchantment.

Prowling Felidar

Vigilance
Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on Prowling Felidar.

Jareth, Leonine Titan

Whenever Jareth, Leonine Titan blocks, it gets +7/+7 until end of turn.
{W}: Jareth gains protection from the color of your choice until end of turn.

Dragon's Claw

Whenever a player casts a red spell, you may gain 1 life.

Keeper of Fables

Whenever one or more non-Human creatures you control deal combat damage to a player, draw a card.

Righteous Charge

Pride Sovereign

Pride Sovereign gets +1/+1 for each other Cat you control.
{W}, {T}, Exert Pride Sovereign: Create two 1/1 white Cat creature tokens with lifelink. (An exerted creature won't untap during your next untap step.)

Kaheera, the Orphanguard

Companion — Each creature card in your starting deck is a Cat, Elemental, Nightmare, Dinosaur, or Beast card. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.)
Vigilance
Each other creature you control that's a Cat, Elemental, Nightmare, Dinosaur, or Beast gets +1/+1 and has vigilance.

Ajani, Mentor of Heroes

+1: Distribute three +1/+1 counters among one, two, or three target creatures you control.
+1: Look at the top four cards of your library. You may reveal an Aura, creature, or planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
−8: You gain 100 life.

Leonin Vanguard

At the beginning of combat on your turn, if you control three or more creatures, Leonin Vanguard gets +1/+1 until end of turn and you gain 1 life.

Rancor

Enchant creature
Enchanted creature gets +2/+0 and has trample.
When Rancor is put into a graveyard from the battlefield, return Rancor to its owner's hand.

Chariot of Victory

Equipped creature has first strike, trample, and haste.
Equip {1}

Leonin Warleader

Whenever Leonin Warleader attacks, create two 1/1 white Cat creature tokens with lifelink that are tapped and attacking.

Fleecemane Lion

{3}{G}{W}: Monstrosity 1. (If this creature isn't monstrous, put a +1/+1 counter on it and it becomes monstrous.)
As long as Fleecemane Lion is monstrous, it has hexproof and indestructible.

Felidar Sovereign

Vigilance, lifelink
At the beginning of your upkeep, if you have 40 or more life, you win the game.

Angel's Feather

Whenever a player casts a white spell, you may gain 1 life.

Nazahn, Revered Bladesmith

When Nazahn, Revered Bladesmith enters the battlefield, search your library for an Equipment card and reveal it. If you reveal a card named Hammer of Nazahn this way, put it onto the battlefield. Otherwise, put that card into your hand. Then shuffle.
Whenever an equipped creature you control attacks, you may tap target creature defending player controls.

Swell of Courage

Creatures you control get +2/+2 until end of turn.
Reinforce X—{X}{W}{W} ({X}{W}{W}, Discard this card: Put X +1/+1 counters on target creature.)

Generous Stray

When Generous Stray enters the battlefield, draw a card.

Qasali Ambusher

Reach
If a creature is attacking you and you control a Forest and a Plains, you may cast Qasali Ambusher without paying its mana cost and as though it had flash.

Feline Sovereign

Other Cats you control get +1/+1 and have protection from Dogs.
Whenever one or more Cats you control deal combat damage to a player, destroy up to one target artifact or enchantment that player controls.

Leonin Abunas

Artifacts you control have hexproof. (They can't be the targets of spells or abilities your opponents control.)

Kemba, Kha Regent

At the beginning of your upkeep, create a 2/2 white Cat creature token for each Equipment attached to Kemba, Kha Regent.

Felidar Retreat

Landfall — Whenever a land enters the battlefield under your control, choose one —
• Create a 2/2 white Cat Beast creature token.
• Put a +1/+1 counter on each creature you control. Those creatures gain vigilance until end of turn.

Engineered Might

Choose one —
• Target creature gets +5/+5 and gains trample until end of turn.
• Creatures you control get +2/+2 and gain vigilance until end of turn.

Talisman of Unity

{T}: Add {C}.
{T}: Add {G} or {W}. Talisman of Unity deals 1 damage to you.

Leonin Bladetrap

Flash (You may cast this spell any time you could cast an instant.)
{2}, Sacrifice Leonin Bladetrap: It deals 2 damage to each attacking creature without flying.

Pristine Talisman

Lead Astray

Guardian Lions

Vigilance (Attacking doesn't cause this creature to tap.)

Healer of the Pride

Whenever another creature enters the battlefield under your control, you gain 2 life.

Windborne Charge

Two target creatures you control each get +2/+2 and gain flying until end of turn.

Leonin Sun Standard

{1}{W}: Creatures you control get +1/+1 until end of turn.

Plains

Gift of Strength

Target creature gets +3/+3 and gains reach until end of turn.

Qasali Slingers

Reach
Whenever Qasali Slingers or another Cat enters the battlefield under your control, you may destroy target artifact or enchantment.

Leonin Shikari

You may activate equip abilities any time you could cast an instant.

Malachite Talisman

Whenever a player casts a green spell, you may pay {3}. If you do, untap target permanent.

Highcliff Felidar

Vigilance
When Highcliff Felidar enters the battlefield, for each opponent, choose a creature with the greatest power among creatures that player controls. Destroy those creatures.

Leonin Arbiter

Players can't search libraries. Any player may pay {2} for that player to ignore this effect until end of turn.

Ajani, Inspiring Leader

+2: You gain 2 life. Put two +1/+1 counters on up to one target creature.
−3: Exile target creature. Its controller gains 2 life.
−10: Creatures you control gain flying and double strike until end of turn.

Aerial Maneuver

Target creature gets +1/+1 and gains flying and first strike until end of turn.

Nylea's Forerunner

Trample
Other creatures you control have trample.

Hero of the Pride

Whenever you cast a spell that targets Hero of the Pride, creatures you control get +1/+0 until end of turn.

Demon's Horn

Whenever a player casts a black spell, you may gain 1 life.

Jazal Goldmane

First strike
{3}{W}{W}: Attacking creatures you control get +X/+X until end of turn, where X is the number of attacking creatures.

Forest

Charmed Stray

Lifelink
When Charmed Stray enters the battlefield, put a +1/+1 counter on each other creature you control named Charmed Stray.

Hammer of Nazahn

Whenever Hammer of Nazahn or another Equipment enters the battlefield under your control, you may attach that Equipment to target creature you control.
Equipped creature gets +2/+0 and has indestructible.
Equip {4}

Herald of the Forgotten

Flying
When Herald of the Forgotten enters the battlefield, if you cast it, return any number of target permanent cards with cycling abilities from your graveyard to the battlefield.

Ajani, Adversary of Tyrants

+1: Put a +1/+1 counter on each of up to two target creatures.
−2: Return target creature card with mana value 2 or less from your graveyard to the battlefield.
−7: You get an emblem with "At the beginning of your end step, create three 1/1 white Cat creature tokens with lifelink."

Colossification

Enchant creature
When Colossification enters the battlefield, tap enchanted creature.
Enchanted creature gets +20/+20.

Felidar Umbra

Enchant creature
Enchanted creature has lifelink.
{1}{W}: Attach Felidar Umbra to target creature you control.
Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Regal Caracal

Other Cats you control get +1/+1 and have lifelink.
When Regal Caracal enters the battlefield, create two 1/1 white Cat creature tokens with lifelink.

Grizzled Leotau

Esika's Chariot

When Esika's Chariot enters the battlefield, create two 2/2 green Cat creature tokens.
Whenever Esika's Chariot attacks, create a token that's a copy of target token you control.
Crew 4