Iris, Super Earth Soldier

Haste, First strike
When this creature enters, you may cast an equipment or vehicle from your hand without paying it's mana cost. If an equipment is cast this way, you may equip it to this creature for free.
{w}{u}{t}: Put an equipment or vehicle from your hand onto the battlefield.
{2}{w}{u}: Sacrifice this card, deal X damage to each other creature where X is equal to the highest mana cost of equipment or vehicle you control.
"OH GO- I nearly took your head off! I migh- I think my heart skipped a