Stainless Knight

When you cast this spell, if you control a creature, this spell gains Knight modular 1.
(This enters the battlefield with a +1/+1 counter
on it. When it dies, you may put its +1/+1 counters on target Knight or artifact creature.)
"Yes, he wears an elaborate helmet, but I'm told that what's underneath is far more so."
- Karn, Scion of Urza