Windshaper Planetar

Flash
Flying
When Windshaper Planetar enters during the declare attackers step, for each attacking creature, you may reselect which player or permanent that creature is attacking. (It can't attack its controller or their permanents.)

Jabari's Influence

Cast this spell only after combat.
Gain control of target nonartifact, nonblack creature that attacked you this turn and put a -1/-0 counter on it.

Oblation

The owner of target nonland permanent shuffles it into their library, then draws two cards.

Crawlspace

No more than two creatures can attack you each combat.

Lin Sivvi, Defiant Hero

{X}, {T}: Search your library for a Rebel permanent card with mana value X or less, put it onto the battlefield, then shuffle.
{3}: Put target Rebel card from your graveyard on the bottom of your library.

Caged Sun

As Caged Sun enters, choose a color.
Creatures you control of the chosen color get +1/+1.
Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.

Defensive Formation

Rather than the attacking player, you assign the combat damage of each creature attacking you. You can divide that creature's combat damage as you choose among any of the creatures blocking it.

Brave the Sands

Creatures you control have vigilance.
Each creature you control can block an additional creature each combat.

Weathered Sentinels

Defender, vigilance, reach, trample
Weathered Sentinels can attack players who attacked you during their last turn as though it didn't have defender.
Whenever Weathered Sentinels attacks, it gets +3/+3 and gains indestructible until end of turn.

Kjeldoran Guard

{T}: Target creature gets +1/+1 until end of turn. When that creature leaves the battlefield this turn, sacrifice Kjeldoran Guard. Activate only during combat and only if defending player controls no snow lands.

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Shifting Wall

Defender (This creature can't attack.)
Shifting Wall enters with X +1/+1 counters on it.

Beloved Chaplain

Surprise Deployment

Cast this spell only during combat.
You may put a nonwhite creature card from your hand onto the battlefield. At the beginning of the next end step, return that creature to your hand. (Return it only if it's on the battlefield.)

Curtain of Light

Cast this spell only during combat after blockers are declared.
Target unblocked attacking creature becomes blocked. (This spell works on creatures that can't be blocked.)
Draw a card.

Moment of Silence

Target player skips their next combat phase this turn.

Lost Order of Jarkeld

As Lost Order of Jarkeld enters, choose an opponent.
Lost Order of Jarkeld's power and toughness are each equal to 1 plus the number of creatures the chosen player controls.

Immortal Obligation

Return target creature card from an opponent's graveyard to the battlefield under their control with a duty counter on it. For as long as that creature has a duty counter on it, it is goaded, can't attack you or a permanent you control, and can't block creatures you control.

General Jarkeld

{T}: Choose two target blocked attacking creatures. If each of those creatures could be blocked by all creatures that the other is blocked by, each creature that's blocking exactly one of those attacking creatures stops blocking it and is blocking the other attacking creature. Activate only during the declare blockers step.

Kjeldoran Elite Guard

{T}: Target creature gets +2/+2 until end of turn. When that creature leaves the battlefield this turn, sacrifice Kjeldoran Elite Guard. Activate only during combat.

Trap Runner

{T}: Target unblocked attacking creature becomes blocked. Activate only during combat after blockers are declared. (This ability works on creatures that can't be blocked.)

Arcum's Whistle

{3}, {T}: Choose target non-Wall creature the active player has controlled continuously since the beginning of the turn. That player may pay {X}, where X is that mana value. If they don't pay, the creature attacks this turn if able, and at the beginning of the next end step, destroy it if it didn't attack this turn. Activate only before attackers are declared.

Benalish Missionary

{1}{W}, {T}: Prevent all combat damage that would be dealt by target blocked creature this turn.

Suspicious Bookcase

Defender
{3}, {T}: Target creature can't be blocked this turn.

Mandate of Peace

Cast this spell only during combat.
Your opponents can't cast spells this turn.
End the combat phase. (Remove all attackers and blockers from combat. Exile all spells and abilities from the stack, including this spell.)

Kjeldoran Royal Guard

{T}: All combat damage that would be dealt to you by unblocked creatures this turn is dealt to Kjeldoran Royal Guard instead.

Michiko Konda, Truth Seeker

Whenever a source an opponent controls deals damage to you, that player sacrifices a permanent of their choice.

Off Balance

Target creature can't attack or block this turn.

Knight of the Holy Nimbus

Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)
If Knight of the Holy Nimbus would be destroyed, regenerate it. (Tap it, remove it from combat, and heal all damage on it.)
{2}: Knight of the Holy Nimbus can't be regenerated this turn. Only your opponents may activate this ability.

Guardian of the Gateless

Flying
Guardian of the Gateless can block any number of creatures.
Whenever Guardian of the Gateless blocks, it gets +1/+1 until end of turn for each creature it's blocking.

Hundred-Handed One

Vigilance
{3}{W}{W}{W}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)
As long as Hundred-Handed One is monstrous, it has reach and can block an additional ninety-nine creatures each combat.

Rapid Fire

Cast this spell only before blockers are declared.
Target creature gains first strike until end of turn. If it doesn't have rampage, that creature gains rampage 2 until end of turn. (Whenever the creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)

Mirror Strike

All combat damage that would be dealt to you this turn by target unblocked creature is dealt to its controller instead.

Wall of Junk

Defender (This creature can't attack.)
When Wall of Junk blocks, return it to its owner's hand at end of combat. (Return it only if it's on the battlefield.)

The War Games

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I — Each player creates three tapped 1/1 white Warrior creature tokens. The tokens are goaded for as long as The War Games remains on the battlefield.
II, III — Put a +1/+1 counter on each Warrior creature.
IV — You may exile a nontoken creature you control. When you do, exile all Warriors.

Alabaster Wall

Defender (This creature can't attack.)
{T}: Prevent the next 1 damage that would be dealt to any target this turn.

Shield Sphere

Defender
Whenever Shield Sphere blocks, put a -0/-1 counter on it.

Acidic Dagger

{4}, {T}: Whenever target creature deals combat damage to a non-Wall creature this turn, destroy that non-Wall creature. When the targeted creature leaves the battlefield this turn, sacrifice Acidic Dagger. Activate only before blockers are declared.

Akroan Horse

Defender
When Akroan Horse enters, an opponent gains control of it.
At the beginning of your upkeep, each opponent creates a 1/1 white Soldier creature token.

Wall of Omens

Defender
When Wall of Omens enters, draw a card.

Martial Impetus

Enchant creature
Enchanted creature gets +1/+1 and is goaded. (It attacks each combat if able and attacks a player other than you if able.)
Whenever enchanted creature attacks, each other creature that's attacking one of your opponents gets +1/+1 until end of turn.

Rolling Stones

Wall creatures can attack as though they didn't have defender.

Wall of Nets

Defender (This creature can't attack.)
At end of combat, exile all creatures blocked by Wall of Nets.
When Wall of Nets leaves the battlefield, return all cards exiled with Wall of Nets to the battlefield under their owners' control.

Cut a Deal

Each opponent draws a card, then you draw a card for each opponent who drew a card this way.

Blaze of Glory

Cast this spell only during combat before blockers are declared.
Target creature defending player controls can block any number of creatures this turn. It blocks each attacking creature this turn if able.

Turn the Tables

All combat damage that would be dealt to you this turn is dealt to target attacking creature instead.

Harsh Justice

Cast this spell only during the declare attackers step and only if you've been attacked this step.
This turn, whenever an attacking creature deals combat damage to you, it deals that much damage to its controller.

Sentinel

{0}: Change Sentinel's base toughness to 1 plus the power of target creature blocking or blocked by Sentinel. (This effect lasts indefinitely.)

Dazzling Beauty

Cast this spell only during the declare blockers step.
Target unblocked attacking creature becomes blocked. (This spell works on creatures that can't be blocked.)
Draw a card at the beginning of the next turn's upkeep.

Lyev Decree

Detain up to two target creatures your opponents control. (Until your next turn, those creatures can't attack or block and their activated abilities can't be activated.)