Standard MTG sets

Whenever you expend 4, put a +1/+1 counter on Wandertale Mentor. (You expend 4 as you spend your fourth total mana to cast spells during a turn.) {...

Valiant — Whenever Veteran Guardmouse becomes the target of a spell or ability you control for the first time each turn, it gets +1/+0 and gains fi...

Whenever you cast a noncreature spell, put a +1/+1 counter on Tempest Angler.

Whenever you cast a noncreature spell, put a +1/+1 counter on Tempest Angler.

Haste Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Instant and sorcery spells you cast cost {1} les...

At the beginning of your first main phase, add {R} or {G} for each Raccoon you control. Whenever you expend 4, you gain 3 life. (You expend 4 as yo...

At the beginning of your first main phase, add {R} or {G} for each Raccoon you control. Whenever you expend 4, you gain 3 life. (You expend 4 as yo...

Other Mice you control get +1/+1. When Mabel, Heir to Cragflame enters, create Cragflame, a legendary colorless Equipment artifact token with "Equi...

Other Mice you control get +1/+1. When Mabel, Heir to Cragflame enters, create Cragflame, a legendary colorless Equipment artifact token with "Equi...

Trample Whenever you expend 4, Junkblade Bruiser gets +2/+1 until end of turn. (You expend 4 as you spend your fourth total mana to cast spells dur...

At the beginning of your second main phase, if an opponent lost life this turn, exile the top two cards of your library. Choose one of them. Until ...

Cindering Cutthroat enters with a +1/+1 counter on it if an opponent lost life this turn. {1}{B/R}: Cindering Cutthroat gains menace until end of t...

When this creature dies, it deals 1 damage to target player. (This token's mana cost is {1}{R}.)

Whenever you cast a noncreature spell, this creature deals 1 damage to opponent. (This token's mana cost is {1}{R}.)

Trample When this creature attacks, another target creature you control gains trample and gets +X/+X until end of turn, where X is this creature's ...

Whenever another outlaw enters the battlefield under your control, Vial Smasher, Gleeful Grenadier deals 1 damage to target opponent. (Assassins, M...

Whenever another outlaw enters the battlefield under your control, Vial Smasher, Gleeful Grenadier deals 1 damage to target opponent. (Assassins, M...

Whenever a source you control deals noncombat damage to a creature equal to that creature's toughness, draw a card. {X}, {T}: If a source you contr...

Slick Sequence deals 2 damage to any target. If you've cast another spell this turn, draw a card.

Whenever you cast a modal spell, choose up to X, where X is the number of times you chose a mode for that spell — • Exile the top card of your libr...

Whenever you cast a modal spell, choose up to X, where X is the number of times you chose a mode for that spell — • Exile the top card of your libr...

Flying, trample Whenever you sacrifice another creature, exile cards equal to its mana value from the top of target player's library. Until your ne...

Menace Whenever Obeka, Splitter of Seconds deals combat damage to a player, you get that many additional upkeep steps after this phase.

Whenever you commit a crime, you may pay {1}. If you do, look at the top two cards of your library. Put one of them into your hand and the other in...