Vigilance, haste

Valiant — Whenever this creature becomes the target of a spell or ability you control for the first time each turn, put a +1/+1 counter on it.

Flash

Valiant — Whenever this creature becomes the target of a spell or ability you control for the first time each turn, tap target creature an opponent controls.

First strike

Whenever this creature or another creature you control enters, target creature gets +2/+0 until end of turn.

Whenever this creature becomes the target of a spell or ability, it gets +0/+3 until end of turn.

Flying

Whenever this creature becomes the target of a spell or ability, this creature gets +0/+3 until end of turn.

First strike, vigilance

Heroic — Whenever you cast a spell that targets Anax and Cymede, creatures you control get +1/+1 and gain trample until end of turn.

Flying

Whenever you cast a spell that targets this creature, creatures you control get +1/+0 until end of turn.

Landfall — Whenever a land you control enters, target creature gets +1/+1 until end of turn. Then if that creature has power 4 or greater, it gains first strike until end of turn.

Whenever you scry, this creature gets +2/+0 and gains first strike until end of turn.

Whenever you cast a spell that targets this creature, creatures you control get +1/+0 until end of turn.

Landfall — Whenever a land you control enters, this creature gains first strike until end of turn.

Whenever a creature you control becomes blocked, it gets +3/+3 until end of turn for each creature blocking it.

First strike

Landfall — Whenever a land you control enters, this creature gets +2/+2 until end of turn.

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)

Whenever you attack a player, target creature that's attacking that player gains first strike until end of turn.

First strike

Magecraft — Whenever you cast or copy an instant or sorcery spell, this creature gets +1/+0 until end of turn.

Whenever you attack, target attacking creature gets +1/+0 and gains first strike until end of turn.

At the beginning of combat on your turn, target creature you control gets +X/+0 until end of turn, where X is this creature's power.

Rally — Whenever this creature or another Ally you control enters, creatures you control gain double strike until end of turn.