Haxlaxx, Serpent Guardian

Deathtouch, Protection from Creature Abilities

If Haxlaxx, Serpent Guardian and Jainora, Kindred
Druid are both on the battlefield. All Creature you control have +2/+1 counter as long they both are on
the battlefield.

Haxlaxx is a the Guardian of Jainora, Haxlaxx
was a gift from the Crimson Valleys given to Jainora
when she was born, protecting her always, seeing her
as her only child. - Druid Legend