Dumbledore, Headmaster

Reach
{1}{w}{t}, Tap target creature until end of turn.
{2}{w}{t}, Turn target creature into a 1/1 blue Frog creature until end of turn.
{3}{w}{t}, Use this as an Instant. Target creature
can't attack this turn.
{4}{w}{t}, Target creature gains Lifelink until end
of turn.