Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.) Other green creatures you control have intimidate.

Trample As an additional cost to cast green permanent spells, you may pay 2 life. Those spells cost {G} less to cast if you paid life this way. This effect reduces only the amount of green mana you pay. Whenever you cast a green permanent spell, put a +1/+1 counter on each creature you control.

Trample When this creature dies, create three 5/5 green Wurm creature tokens with trample. When Worldspine Wurm is put into a graveyard from anywhere, shuffle it into its owner's library.