Combat Stims

This equipment can only be used by humans. Equipped creature gains +1/+1 and vigilance.
{2}: Equipped creature gains an additional +1/+1 and trample. After using this ability the creature gains a -1/-1 counter after the combat phase.
{4}: Equipped creature gains an additional +3/+3, first strike, haste, and cannot be dealt combat damage this turn. After this turn, equipped creature is destroyed.
Equip cost: {2}