Master of Arts

Vigilance, indestructible, reach
{2}: Any player may activate this ability during his
or her declare blocker step. Master of Arts may
join its battlefield until end of turn. (Master of
Arts still counts as creature you control.)
You choose how Master of Arts blocks this turn.
At the end of turn, you and attacking player may
draw a card.
"...the surest way to be happy is to seek happiness
for others."