I even love the clunky combat tricks that just play weirdly, like [casthaven]Swell of Growth[/casthaven] (it was supposed to provide an additional buff to landfall creatures, but the rarity of that being useful, due to the low power of landfall creatures, often relegated it to a horrible ramp spell)
Sidisi allows you to create 2/2 Creature tokens whenever Creature cards go from your library into your graveyard
I'd say the main factors keeping Thoughtseize at bay are aggro's metagame presence and the fact that replacements get the job done often enough to warrant a split
As far as being worth it, booster boxes follow the rule that buying in bulk is more efficient than buying single packs over the course of a longer period of time
Each token is double-sided, featuring a regular frame and a power/toughness frame, allowing for quick adaptability
A Beta set commands a price over $100,000