Frost Titan [Secret Lair Drop Series] HVY141 it gains trample and gets

it gains trample and gets +X/+X until end of turn

then puts all cards revealed this way that weren't put onto the battlefield on the bottom of their library in any order

When Dragon Mantle enters the battlefield

target creature gets +3/+2 and gains trample until end of turn

Set: Dominaria United Type: Legendary Creature — Bird Wizard Rarity: Uncommon Cost: {U}{R} Flying

Frost Titan [Secret Lair Drop Series] HVY141 it gains trample and getsSet: Secret Lair Drop Series Type: Creature Giant Rarity: Mythic Cost: {4}{U}{U} Whenever Frost Titan becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {2}. Whenever Frost Titan enters the battlefield or attacks, tap target permanent. It doesn't untap during its controller's next untap step.