Infiltrator Minion

This creature can't be blocked by creatures with
toughness 2 or greater.
When Infiltrator Minion deals combat damage to
a player, destroy target untapped creature that
player controls. When Infiltrator Minion becomes
blocked, at the beginning of the end of combat
step, tap all target defending creatures that
blocked Infiltrator Minion. During the end of
combat step on your turn, tapped creatures your opponents control get -2/-2.