Faterider Dragon

Stride — {2}{w}{u} you may cast this card over
a legendary artifact creature. (It has the skills
of all cards under this card as well.)

Flying, Haste

When this card attacks you may exile another creature on your battlefield. If you do search your library for one artifact creature with converted mana value +1 and cast it tapped and attacking and put two +1/+1 counters on it. At the end of the turn you send that card to the bottom of your library and return the exiled card to the battl