Leaping Attack: From a standstill, the Giant Squirrel can leap up to 30ft in any direction. If the Squirrel covers at least 15ft with it's leap, it's next attack has advantage.   Decayed Form: Leaves a toxic residue where it's standing when it starts it's turn. If it ends it's turn in the residue, the area expands by 5ft on each side. Ending your turn in the area of residue deals 2d6 poison damage and breaks concentration, DC 14 Con save for no effect.   Undead Constitution: Doesn't breath or eat   Undead Fortitude: DC 5+damage taken Con save to survive w/ 1hp, unless Crit. or Radiant damage