Combos Utilizing Symbiotic-Wurm

tap the boneyard to sac one of the wurms to gain life and get a wurm, or tokens. then bring it back with reya. you can throw in mana prodocing elvs or an elvish piper in order to put these out faster.

When you smack a player, have lots of the Symbiotic and Penumbra creatures out, or Summoner's Egg, and everything will die that isn't regenerated/indestructible, leaving you with a board of creatures!

sacrifice the wurm, get 7 tokens; sacrifice a token, get the wurm; catch my drift?

cast symbiotic wurm, fling it for 7 damage, and cast sproling symbiosis to get 14 saproling tokens

after you get the symbiotic wurm into play, clone it, kill both or let them be killed, then play parallel evolution on the green insect tokens, and finally play coat of arms on the green insect tokens

play, defence of the heart, next turn you get devouring strosses and symbiotic wurm. you sacrifice symbiotic wurm (upkeep cost devouring) and get seven 1/1 tokens. 9/9 trample for seven turns.

Get the wurm killed or find an easy way to sacrifice it, and with coat of arms you get seven 1/1s that give each other +6/+6.

get a lot of little 1/1's

when symbiotic w would die, with art evol change insects to elves.

get out dawn of the dead and a carrion feeder pull the wurm out of you graveyard attack and sac to feeder for 7 1/1's plus the feeder gets bigger. if you life gets low grab the ancestor's chosen.