Iconic sits above Enchanted as the game's rarest tier, introduced alongside Epic rarity in Set 9: Fabled
It's impossible to estimate its value since there have been no public transactions completed to-date, but a similar card, Marvel's Spider-Man textless The Soul Stone, is currently listed with a $175,000 price tag
Rufus Shinra can creature a creature token each time it attacks, which can then be sacrificed to fuel payoffs like Judge Magister Gabranth's
Master Duels version of a Battle Pass and grants players rewards for each level they gain while the Duel Pass is active
Mostly you play this as a source of ongoing card advantage but it is nice that it is also a pretty substantial threat as well
There's no limit on the number of ongoing schemes you can have face up in your command zone, and having one or more ongoing schemes in your command zone doesn't stop you from setting a scheme in motion at the beginning of your first main phase