Engineering Toolkit

Hexproof, Indestructable
At the beginning of every end step, create{e}.
{e}{e},{t}: Pay life equal to target artifacts mana
cost. Make a copy of target artifact. Sacrifice it
at the end of turn.
{e}{e}{e},{t}: Target creature loses all abilities and becomes an 1/1 artifact creature
{e}{e}{e}{e},Pay 10 life: Untap all lands you control.
Activate only once each turn.