The Sniper Kitty

+2: Put an "Aim" counter on X target creatures. During each player's upkeep Exile up to 3 creatures with "Aim" counters on them.
-3: Permanents lose hexproof and shroud. Exile up to 3 noncreature, nonland permanents.
-10: Exile 5 nonland permanents your opponents control. Put all permanents that were exiled onto the battlefield under your control.