(Put a -1/-1 counter on a creature you control.) It is accompanied by the agonized squeals of faeries caught in its sap
Shared Animosity scales up according to how many creatures are attacking, so a token-heavy build like Goblin tribal is the ideal home for this aggressive enchantment
Chapter III lets you search your library for any Dinosaur card that fits the situation at hand, depending on the state of the battlefield and your mana situation, which should be pretty darn good, barring an untimely battlefield sweeper
If you don't need it to be tournament playable, we can paint over whatever you like
And its standard legal
Amzu, Swarm's Hunger With flying and menace, Amzu, Swarm's Hunger is already hard to block, and it makes all your other insects just as menacing