Weak-Batteried Automaton

Weak-Batteried Automaton doesn't untap during
your untap step.
Whenever Weak-Batteried Automaton attacks or blocks, tap it.
{2}: Untap Weak-Batteried Automaton. Gain
control of It. It gains haste until end of turn.
Any player may activate this ability but only
during their turn and only if Weak-Batteried Automaton is tapped.