Eldrazi Stalker

When Eldrazi Stalker enters the battlefield, all
your permanents gain Vigilance.
Flash, Hexproof, Vigilance
When this card attacks, roll your life counter die.
If it lands 10+, then multiply your attack by 2.
This creature can block any amount of damage
without dying.
When a creature on the battlefield dies, Eldrazi Stalker gets +2/+2.