It tends to be a game-winner, and is worth considering in Izzet decks, but runs the risk of you decking yourself out before winning
While it wasn't the best against a creature based strategy, it usually was good enough to at least gain the caster back the one card spent casting the enchantment in the first place
While Gandalf does trigger off of far fewer permanents, he does have a one-up on the previous villains by also doubling leave the battlefield triggers
The Lorwyn Goblins add abilities from other colors like recursion (Warren Pilferers), Fear (Spiderwig Boggart), exiling cards from a library (Earwig Squad), Regeneration (Mad Auntie), and others
Thats wild
The Quiet Years: Part 2 (20062010) Much like the years just after Urza's block and Tempest block, Wizards followed up on the mistakes of Mirrodin block by powering down future sets