Elvyra, Deceiver of mind

+2: gain control of target creature with power equal to or less than the amount of loyalty counters on Elvyra, Deceiver of mind
+3: All creatures you control get +6/+6 and deathtouch until end of turn
+15: All other players shuffle their hands,permanents, graveyards, and exiles into their libraries, shuffle their libraries then draw seven cards