This will help you figure out exactly which one is right for you and plan your strategy
Kuja, Mage Manufacturer Garnet Til Alexandros 17th Edea Kramer Seymour Guado (Kinnan, Bonder Prodigy) Excalibur II The Wandering Minstrel Golbez, Crystal Collector Summon: Fat Chocobo Summon: G.F
Or, you know, just return it to your hand so you can cast it again and make another token
With such a potent answer like Unholy Heat, most of the creatures and Planeswalkers are easily answered, so decks have to play a lower curve threat package to not trade big mana threats against a single Unholy Heat
Deck Tech Your Treasures are going to be plentiful, but not terribly useful: They can't attack or defend, and can only generate mana if you sacrifice them (unless you destroy mana dorks, which is probably a great idea)