Elder Rullet

{4},{t} Devolve (Rullet Virus)
(When this creature deals damage to another,place 1 Rullet token on creature.
Each upkeep add 1 token to infected creature. At 3 tokens infected creature mutates into 2/2 Rullet minion with Deathtouch
under your control.)
"Unfortunate adventurers sometimes drag marks,
by then its usually too late..