Coruscating Flames — Whenever you cast an instant or sorcery spell, this creature deals 2 damage to any target. Split — When this creature dies, create two 2/2 blue and red Demon Horror creature tokens named Blue Horror with "Whenever you cast an instant or sorcery spell, this token deals 1 damage to any target."
Whenever one or more Goblins you control attack, create a 1/1 red Goblin creature token that's tapped and attacking. Whenever another creature you control enters, General Kreat deals 1 damage to each opponent.
To cross swords with her is a shockingly bad idea.
Ward—Pay 2 life. Other creatures you control enter with an additional +1/+1 counter on them for each opponent who lost life this turn. Whenever you cast a Lizard spell, Gev deals 1 damage to target opponent.
Enchant creature Enchanted creature has trample. Whenever all non-Wall creatures you control attack, enchanted creature gets +X/+0 until end of turn, where X is the number of attacking creatures.
"Why is loud stupidity so infectious?" —Rana, Suq'Ata market fool
Flying, Trample Whenever Arius attacks, seek a non-Shark card. Discard that card at the beginning of the next end step. Whenever you discard one or more cards, put a +1/+1 counter on Arius.
Enchant creature Enchanted creature doesn't untap during its controller's untap step. Forecast — {W}{U}, Reveal this card from your hand: Tap target creature.
Vigilance, trample Grenades! — {2}, {T}, Sacrifice an artifact: Choose a player at random. When you do, Strax fights another target creature that player controls. Glory of Battle — Whenever Strax deals damage to a creature, put a +1/+1 counter on Strax.