As Ixidron enters the battlefield, turn all other nontoken creatures face down. (They're 2/2 creatures.)
Ixidron's power and toughness are each equal to the number of face-down creatures on the battlefield.

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Flying
Whenever this creature mutates, exile the top card of each opponent's library face down. You may look at and play those cards for as long as they remain exiled.

Flying
Whenever you cast your first spell during each opponent's turn, Mischievous Chimera deals 1 damage to each opponent. Scry 1.

Whenever a creature you control dies, you gain 1 life and draw a card.

When Ogre Painbringer enters the battlefield, it deals 3 damage to each player.

Trample
Whenever one or more creatures you control with trample deal combat damage to a player, create an X/X green Dinosaur Beast creature token with trample, where X is the amount of damage those creatures dealt to that player.

When Rage-Scarred Berserker enters the battlefield, target creature you control gets +1/+0 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

When Ravager's Mace enters the battlefield, attach it to target creature you control.
Equipped creature gets +1/+0 for each creature in your party and has menace. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)
Equip

Whenever you cycle a card, you may have Reptilian Reflection become a 5/4 Dinosaur creature with trample and haste in addition to its other types until end of turn.

Whenever you cycle a card, Reptillian Reflection becomes a 5/4 Dinosaur creature with trample and haste in addition to its other types until end of turn.

Flying
At the beginning of your end step, if an opponent lost life this turn, put a +1/+1 counter on Savage Gorger. (Damage causes loss of life.)

When Scavenged Blade enters the battlefield, attach it to target creature you control.
Equipped creature gets +2/+0.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Flying
At the beginning of your postcombat main phase, you get an additional beginning phase after this phase. (The beginning phase includes the untap, upkeep, and draw steps.)

As long as it's your turn, Spiteful Prankster has first strike.
Whenever another creature dies, Spiteful Prankster deals 1 damage to target player or planeswalker.

Landfall — Whenever a land enters the battlefield under your control, Spitfire Lagac deals 1 damage to each opponent.

Flying

Trample
Lethal damage dealt to creatures you control is determined by their power rather than their toughness.