The example given in the document is a faerie leader which costs 1B to move from the sideboard to your hand, and has an additional cost of tapping six power's worth of faeries
This Charizard ex features a Terastallized Shiny Charizard, which is considered by many to be one of the coolest Shiny Pokemon variants among all generations
Tooth and Nail is similarly an expensive but potentially game-winning gambit
He gets every important dramatic beat in the fight against Bolas, from leading a squad of angels against Bolass undead army to giving the big pump-up speech to stabbing Bolas with a massive sword
Sauron, the Dark Lord is a 7/6 with ward sacrifice a legendary artifact or creature to target him
Almost every Ragavan, Nimble Pilferer deck plays the two-mana sorcery alongside it, as the more mana you can create, the better Iteration is as it is not being forced to take lands from it/having the mana to be able to cast any card you hit makes Iteration closer to a two-mana spell that draws two of the top three cards, which is utterly broken