The War Hammer Titan

Titanshift {6}{w}{b} (If you cast this spell for its Titanshift cost, put it over target Human creature you control. They Titanshift into the creature on top.)
Indestructible, Lifelink, Menace
When The War Hammer Titan enters the battlefield, if it Titanshifted, search your library for up to two artifact cards and put them onto the battlefield tapped. Then shuffle your library.