Is my Elvish Piper pre-modern deck list actually competitive?

"Pay the Piper"

4 Llanowar Elves

4 fyndhorn elves

4 Elves of Deep Shadow

4 Elvish Piper

4 Defense of the Heart

4 Verdant Force

4 Craw Giant

4 Penumbra Wurm

4 Naturalize

4 Hickory Woodlot

4 Treetop Village

4 Mishra's Factory

12 Forest

2 Dust Bowl

Sideboard:

4 Powder Keg

3 elvish Lyrist

4 Blastoderm

4 Tormod's Crypt

If the opponent is playing a deck with very few creatures, you take out Defense of the Heart and put in Blastoderm. A slight chance of a turn 2 Blastoderm followed by a turn 3 Elvish Piper is basically GG.

So on average you'll draw 2 fatty creatures by the time you can use Elvish Piper to play them, or you can search for 2 creatures with Defense of the Heart against Swarm or Token decks. Usually just get 1 Verdant Force and 1 Penumbra Wurm with each Defense of the Heart, that way Wrath of God or Nevenyrral's Disk can't fully remove your creatures.

Is my Elvish Piper pre-modern deck list actually competitive?
Post Opinion