Twisted Fate, Card Master

When Twisted Fate, Card Master attacks choose
a card. You may activate only that card this
turn and only once.
Gold Card- {w}: Target creature's power becomes
0 until end of turn
Blue Card- {u}: add {r}{w} to your mana pool
Red Card- {r}: 3 target creatures an opponent
control gain last strike until end of turn (This creature deals combat damage after creatures
without last strike.)