Mutable Snatcher

Mutable Snatcher can't be blocked.
Whenever Mutable Snatcher attacks, [___], then
[___]. Choose from the following to fill the
brackets. An effect may not be chosen more than
once.
• [Deal 2 damage to defending player]
• [Draw a card, then discard a card]
• [Gain control of target nonland permanent with
mana value 1 or less.]