It can very quickly spit out a ton of tokens, and those tokens can then be turned into sacrifice fodder for game-winning effects or simply more mana
This is Dimir colors restricted to cast, costs 3 mana, and can only find a card if you have a colored legendary creature out, which the Ring tempting you helps with

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Rabble Rousing The next pseudo MTG token doubler is Rabble Rousing
Tims Zuran Spellcaster (Ice Age/Alliances) , Suq'Ata Firewalker (Mirage/Visions/Weatherlight) , Rootwater Hunter (Tempest/Stronghold/Exodus) , Thornwind Faeries (Saga/Legacy/Destiny) , Stinging Barrier (Masques/Nemesis/Prophecy) Psionic Gift and Hermetic Study are fine, but they require a two card investment: the creature you are enchanting, and the enchantment itself