Of the entire set, only two of them see any significant play
For three mana, Councils Judgement is a white sorcery that says, Starting with you, each player votes for a nonland permanent you dont control
(There are 5 types of permanent spells: Creature, Artifact, Enchantment, Planeswalker, and Battle
For example, Khans of Tarkir was a multicolored set with high complexity and relatively slow speed (owing heavily to morph), whereas Theros stressed monocolored decks (because of devotion) and big, individual threats (due to heroic and monstrosity)
This, combined with other artifact synergies from artifact lands and cards like Arcbound Ravager, led to an unprecedented number of bannings in Standard to make sure that it was fully dead, which, in my book, is a huge testament to the brokenness of Skullclamp
Yuna, Hope of Spira Yuna obviously wants some summons to be good, but it does incredible work even with just common ones like Ifrit and Fat Chocobo