Morningtide

When Ambassador Oak enters the battlefield, create a 1/1 green Elf Warrior creature token.

Auntie's Snitch can't block. Prowl {1}{B} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Goblin or R...

Kithkin spells and Soldier spells you cast cost {1} less to cast.

If a source would deal damage to a player, you may prevent X of that damage, where X is the number of Clerics you control.

At the beginning of your upkeep, you lose 1 life and create a 1/1 black Faerie Rogue creature token with flying.

{T}, Pay 1 life: Add {G}.

Trample When Boldwyr Heavyweights enters the battlefield, each opponent may search their library for a creature card and put it onto the battlefiel...

Cowards can't block Warriors. {R}: Target creature becomes a Coward until end of turn. {2}{R}: Target creature becomes a Warrior until end of turn.

Trample Borderland Behemoth gets +4/+4 for each other Giant you control.

Treefolk spells and Shaman spells you cast cost {1} less to cast.

Each other Warrior creature you control enters the battlefield with an additional +1/+1 counter on it. Each creature you control with a +1/+1 count...

Elemental spells and Warrior spells you cast cost {1} less to cast. Reinforce 1—{1}{R} ({1}{R}, Discard this card: Put a +1/+1 counter on target cr...

Flying Reinforce 2—{2}{W} ({2}{W}, Discard this card: Put two +1/+1 counters on target creature.)

Whenever Burrenton Shield-Bearers attacks, target creature gets +0/+3 until end of turn.

{W}, {T}: Put a +1/+1 counter on target Soldier creature. Each creature you control with a +1/+1 counter on it can block an additional creature eac...

Changeling (This card is every creature type.) Protection from black {2}{G}{G}: Chameleon Colossus gets +X/+X until end of turn, where X is its power.

Changeling (This card is every creature type.) Vigilance

Equipped creature gets +2/+0 and has shroud. (It can't be the target of spells or abilities.) Whenever a Rogue creature enters the battlefield, you...

Choose a creature type. Coordinated Barrage deals damage to target attacking or blocking creature equal to the number of permanents you control of ...

At the beginning of your upkeep, reveal the top card of your library. If it's a land card, put it into your graveyard and repeat this process. When...

Whenever a creature enters the battlefield under your control, you may look at the top X cards of your library, where X is that creature's power. I...

Enchant creature {1}{W}: Put a +1/+1 counter on enchanted creature.

As Declaration of Naught enters the battlefield, choose a card name. {U}: Counter target spell with the chosen name.

Choose target artifact or enchantment. Its owner shuffles it into their library.