Kydele, Chosen of Kruphix might not seem really powerful, but being able to run additional draw spells to try to set yourself up to be able to tap Kydele, make some extra mana, and then cast the 8-CMC Brinelin makes sense to me
Foundations Foundations continued the Japan Showcase series, though the cards selected from this set werent thematic or tied together in any specific way
Gleaming Overseer provides Zombie Tokens we control with Hexproof and Menace
In Commander, its especially nasty in lists with value creatures to spare, letting you spend mana to advance your board while still protecting yourself from board wipes or combo attempts
Theres a slight deckbuilding restriction since most counterspells dont work with cascade unless theyre modal, like Confounding Riddle, but you should produce plenty of value to smash through that