Saber, King of Knights

First Strike, Renown 1
{w}{w}, Remove a +1/+1 counter from Saber: if Saber is renowned, search your library for a card named Excalibur,
reveal it, and put it into your hand.
The cost to equip legendary artifacts you control is reduced by {w}{w}{w}{w}{w}.
Megamorph {w}