Earnest Fellowship

Each creature has protection from its colors.

Faeburrow Elder

Vigilance
Faeburrow Elder gets +1/+1 for each color among permanents you control.
{T}: For each color among permanents you control, add one mana of that color.

Case of the Shattered Pact

When this Case enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
To solve — There are five colors among permanents you control. (If unsolved, solve at the beginning of your end step.)
Solved — At the beginning of combat on your turn, target creature you control gains flying, double strike, and vigilance until end of turn.

Civic Saber

Equipped creature gets +1/+0 for each of its colors.
Equip {1}

Determined

Other spells you control can't be countered this turn.
Draw a card.

Bound

Sacrifice a creature. Return up to X cards from your graveyard to your hand, where X is the number of colors that creature was. Exile this card.

Bound // Determined

Brave the Elements

Choose a color. White creatures you control gain protection from the chosen color until end of turn.

Jared Carthalion

+1: Create a 3/3 Kavu creature token with trample that's all colors.
−3: Choose up to two target creatures. For each of them, put a number of +1/+1 counters on it equal to the number of colors it is.
−6: Return target multicolored card from your graveyard to your hand. If that card was all colors, draw a card and create two Treasure tokens.
Jared Carthalion can be your commander.

Flametongue Kavu

When Flametongue Kavu enters, it deals 4 damage to target creature.

Glass of the Guildpact

Multicolored creatures you control get +1/+1.

Kavu Monarch

Kavu creatures have trample.
Whenever another Kavu enters, put a +1/+1 counter on Kavu Monarch.

Kavu Mauler

Trample
Whenever Kavu Mauler attacks, it gets +1/+1 until end of turn for each other attacking Kavu.

Defiler of Souls

Flying
At the beginning of each player's upkeep, that player sacrifices a monocolored creature of their choice.

Bloodfire Kavu

{R}, Sacrifice Bloodfire Kavu: It deals 2 damage to each creature.

Pygmy Kavu

When Pygmy Kavu enters, draw a card for each black creature your opponents control.

Blessing of the Nephilim

Enchant creature
Enchanted creature gets +1/+1 for each of its colors.

Kavu Scout

Domain — Kavu Scout gets +1/+0 for each basic land type among lands you control.

Hunting Kavu

{1}{R}{G}, {T}: Exile Hunting Kavu and target creature without flying that's attacking you.