Trample

Whenever you cast a spell, Belligerent Regisaur gains indestructible until end of turn.

, , Sacrifice another creature: Create X 2/2 black Zombie creature tokens, where X is the sacrificed creature's power.

If a creature an opponent controls would die, exile it instead.

At the beginning of your upkeep, put all creature cards exiled with Gisa, Glorious Resurrector onto the battlefield under your control. They gain decayed. (A creature with decayed can't block. When it attacks, sacrifice it at end of combat.)

Create two 2/2 black Zombie creature tokens.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Other Dinosaurs you control have haste.

When Regisaur Alpha enters, create a 3/3 green Dinosaur creature token with trample.