The Heart of the Cards

{t}, Discard your hand, sacrifice this artifact:
Special Summon a normal Yu Gi Oh monster you
own from outside the game. That monster
becomes a creature with power equal to its ATK divided by 200 and toughness equal to its DEF
divided by 200. It gains haste and vigilance until
end of turn. If its level is higher than 4, sacrifice a creature you control. If its level is higher than 6, instead sacrifice two creatures you control.
Activate this ability only as a sorcery and only if
you are not