Unassuming Automaton

Vigilance
{b}, {t}: Unassuming Automaton gains +1/0 and deathrouch until end of turn.
{1}{w}, {t}: Unassuming Automaton gains +2/0
and lifelink until end of turn.
{2}{r}, {t}: Unassuming Automaton gains +3/0
and first strike until end of turn.