Regent

{b/r}: Tap target creature
{1}{r}{b},{t}: Gain control of target creature until
end of turn. it becomes a Thrall in addition
to its other types. Target Creature untaps and
gains haste until end of turn.
{b/r}: Gain control of target Thrall until end of
turn, It untaps and gains haste until end of turn.
"I'm letting you go" Regent lied.