Wilbur Cross, Fallen Colonel

Whenever Wilbur Cross enters the battlefield or attacks, for each opponent, tap up to one target creature that player controls. Those creatures
don't untap during their controller's untap step
for as long as you control Wilbur Cross.
{ut}: Gain control of target tapped creature until
the beginning of your next postcombat main
phase. Untap that creature. It gains haste until
end of turn.