Refueling Aetherpump

Pulse (Whenever you cast an instant or sorcery spell, you get {e}.)
{t}: Pay X {e}: If X is greater than five, all vehicles you control become artifact creatures and get +Y/+0 until end of turn. Where Y is X minus five.
Pay {e}{e}{e}: Create a 2/2 colorless Vehicle artifact token with crew 1.