Chromium, the Mutable

Counter target spell.

Target creature gets +1/+7 until end of turn.

At the beginning of combat on your turn, target artifact creature you control gets +2/+2 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

+1: Put a +1/+1 counter on each of up to two target creatures. −2: Return target creature card with mana value 2 or less from your graveyard to the battlefield. −7: You get an emblem with "At the beginning of your end step, create three 1/1 white Cat creature tokens with lifelink."

Whenever a creature or planeswalker you control dies, you may sacrifice this enchantment. If you do, create a 4/4 white Avatar creature token with flying. When a spell or ability an opponent controls causes you to discard this card, if you control a Plains, create a 4/4 white Avatar creature token with flying.

Whenever you gain life, put a +1/+1 counter on this creature.

Whenever a creature you control enters, you gain 1 life.

Flying When this creature enters, creatures you control get +1/+1 and gain vigilance until end of turn.