MTG >Combos >Violencia gratuita +Hidetsugu sin corazón +

For the combo to work, you must have odd total life points and your opponent must have even life points. Activate the

Heartless Hidetsugu

's ability while

Gratuitous Violence

is on the battlefield. Since half the life points for odd numbers in Magic is rounded down, you will still have one life point and your opponent will be dead.