Kantus

Song of Wyrms — {t} All Locust gain Persist until
end of turn.

Ink Grenade — When Kantus dies, target creature an opponent controls takes 3 damage.

"When they reach what looks like a temple, they find the source of the strange noises which is a Kantus Priest. As soon as he finds them, he begins to scream and orders his Locust allies to attack the Gears."