Kha'Rhien the Traitor

Vigilance, Trample, Lifelink
When Kha'Rhien the Traitor enters the battlefield, shuffle all artifacts you control into
your library, attach all equipment and auras you control to this creature.
Whenever an unmodified Kha you control
attacks, put a +1/+1 counter on it and search
your library for an equipment card and
attack it to that creature, then shuffle.