Steam Vents

Destroy all creatures with toughness 4 or greater.

Flying Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) When this creature dies, put a +1/+1 counter on each white creature you control.

Target opponent may have Risk Factor deal 4 damage to them. If that player doesn't, you draw three cards. Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Choose one or both — • Deafening Clarion deals 3 damage to each creature. • Creatures you control gain lifelink until end of turn.

Return up to two target creature cards from your graveyard to your hand.

Counter target spell. Ionize deals 2 damage to that spell's controller.

Hexproof You can't cast noncreature spells. 2: This creature loses all abilities until end of turn. Any player may activate this ability. If a spell or ability an opponent controls causes you to discard this card, put it onto the battlefield instead of putting it into your graveyard.

Response deals 5 damage to target attacking or blocking creature.