Xeno Queen, Protector

Doublestrike, Acid Blood 4
This creature can block 2 additional creatures each combat
{x}: Give a Xenomorph creature you control +0/+X until end Of turn
{t}{3}: Regenerate target Xenomorph creature
{t}{3}: Target Xenomorph creature gains Hexproof
{t}{6}: Prevent all damage done by a source and give this creature 2 -1/-1 counters