Victis Warkite

Flying, intimidate
Whenever Victis Warkite attacks and isn't
blocked, you may gain control of target artifact
defending player controls. If you don't, Victis
Warkite assigns no combat damage this turn.
Victis Warkite gets +2/+0 for each artifact
you control but don't own.
As long as you control three or more artifacts,
Victis Warkite loses all abilities.