Since my new acquisition of 4 Sensei's Divining Top, I've endeavoured to try a few new things with my Crush of Wurms deck (refer here): 20 Forests
4 Llanowar Elves 4 Fyndhorn Elder 4 Sensei's Divining Top 4 Reclaim 4 Sakura-Tribe Elder 4 Kodama’s Reach 4 Gilded Lotus 4 Argothian Wurm 4 Crush of Wurms 2 Roar of the Wurm 2 Journey of Discovery
The deck has changed a lot since then. I'm now pushing towards a Wurm deck, rather than just relying on Crush of Wurms to win. Things have to keep on changing. If I can ever get my hands on Tooth and Nail, expect the deck to swap out the Roars for Tooth and Journey for two good creatures. How does the deck play out now? With Argothian Wurm, I have an early threat which people will sacrifice lands to stop, and I can use Sensei's Divining Top to make them sacrifice multiple lands to stop me. The dream draw and turn is now equally interesting:
Turn 1: Forest (1 green); Llanowar Elves (2 green) Turn 2: Forest (3 green); Fyndhorn Elder (5 green) Turn 3: Forest (6 green); Gilded Lotus (9 green) - using 4 remaining mana, play Argothian Wurm Turn 4: Forest (10 green); Crush of Wurms - attack with Argothian Wurm - then Reclaim Crush of Wurms Turn 5: Crush of Wurms - attack with 4 6/6 Wurms Turn 6: Attack with 7 6/6 Wurms
Of course, since this would require a very very specific hand, it never happens. The deck is now far more resilient - disrupting an opponent's tempo by turn 3 or 4 with Argothian Wurm saves the deck from being slaughtered early in the game. Reclaim allows you to recur Crush of Wurms without much cost - making it really good. A more ideal replacement for Journey of Discovery and Crush of Wurms would be Eternal Witness or Carven Caryatid to put some creatures down, wrecking your opponents' plans and gaining card advantage.
We're still speaking of casual - and nothing beats funny decks in Casual. :D (Note to self: Rancor is too good in Casual - banned!)