"Modern Horizons 2" (313)
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
When this creature enters, search your library for a card, put that card into your graveyard, then shuffle.
Destroy target permanent.
Whenever a player casts a spell, if no colored mana was spent to cast it, counter that spell.
Flying
When Wavesifter enters, investigate twice. (To investigate, create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")
Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)
As long as Wonder is in your graveyard and you control an Island, creatures you control have flying.
Enchant creature
Enchanted creature gets -4/-4.
Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)
Reach
Wren's Run Hydra enters with X +1/+1 counters on it.
Reinforce X— (, Discard this card: Put X +1/+1 counters on target creature.)
When Yavimaya Elder dies, you may search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.
, Sacrifice Yavimaya Elder: Draw a card.
Each land is a Forest in addition to its other land types.
When Young Necromancer enters, you may exile two cards from your graveyard. When you do, return target creature card from your graveyard to the battlefield.
Whenever Yusri, Fortune's Flame attacks, choose a number between 1 and 5. Flip that many coins. For each flip you win, draw a card. For each flip you lose, Yusri deals 2 damage to you. If you won five flips this way, you may cast spells from your hand this turn without paying their mana costs.
Modular 1
If a modular triggered ability would put one or more +1/+1 counters on a creature you control, that many plus one +1/+1 counters are put on it instead.
: Destroy target artifact you control.
: Zabaz, the Glimmerwasp gains flying until end of turn.
Sacrifice a land: You gain 2 life.
Gatherer works better in the Companion app!
, Sacrifice Yavimaya Elder: Draw a card.