Flying

Whenever a player casts their second spell each turn, this creature connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

Whenever you cast a noncreature spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Whenever you cast your second spell each turn, draw a card.

Flash

Flying

Whenever an opponent draws their second card each turn, you draw a card.

: Each player draws a card.

Ward

Whenever you cast a spell from among cards put into your hand this turn, proliferate.

Flying

Flurry — Whenever you cast your second spell each turn, create a 1/1 white Bird creature token with flying.

Flying

Whenever you cast your second spell each turn, put a +1/+1 counter on this creature.

Whenever you cast your second spell each turn, put a +1/+1 counter on this creature.

Flying

The second spell you cast each turn costs less to cast.

The second spell you cast each turn costs less to cast.

Flying, haste

Whenever you cast your second spell each turn, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")

Whenever you cast your first spell during each opponent's turn, draw a card.

Whenever you cast your second spell each turn, put a +1/+1 counter on this creature. It can't be blocked this turn.

Whenever a player casts a spell, that player returns a land they control to its owner's hand.

Whenever you draw your second card each turn, put a +1/+1 counter on this creature.

Flying

Whenever the fourth spell of a turn is cast, flip Erayo.

Whenever you cast your second spell each turn, this creature gets +2/+0 until end of turn and can't be blocked this turn.

Flying

Whenever this creature deals combat damage to a player or planeswalker, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)