Imposter

+20: Imposter Has the ability to kill any creature on the opponents field once per turn and has a 5 turn cool down
+15: Imposter Has the ability to use a creature on the opponents field to then kill another monster on the same opponents field.
+10: Imposter Has the ability to gain the ability of the crewmate on anybody's playing field it prevents the imposter being killed the next 2 turns