Whenever Frost Titan becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays .
Whenever Frost Titan enters the battlefield or attacks, tap target permanent. It doesn't untap during its controller's next untap step.
Deathtouch
Whenever Grave Titan enters the battlefield or attacks, put two 2/2 black Zombie creature tokens onto the battlefield.
: Inferno Titan gets +1/+0 until end of turn.
Whenever Inferno Titan enters the battlefield or attacks, it deals 3 damage divided as you choose among one, two, or three target creatures and/or players.
Trample
Whenever Primeval Titan enters the battlefield or attacks, you may search your library for up to two land cards, put them onto the battlefield tapped, then shuffle your library.
Vigilance
Whenever Sun Titan enters the battlefield or attacks, you may return target permanent card with converted mana cost 3 or less from your graveyard to the battlefield.
: Inferno Titan gets +1/+0 until end of turn.