Bubbles, the Deceiver

When Bubbles, the Deceiver is blocked or
becomes blocked, roll a d4. On a 1 or 2, he
gains trample, and +0/+10 until end of turn.
On a 3 or 4, he gains deathtouch and
double-strike until end of turn.
Whenever Bubbles, the Deceiver deals combat
damage to a player, draw a card.