every rainbow rare pokemon card 5 - Shiny Rare/Radiant Rare/Amazing Lot - 5 Assorted Cards GRADED RAINBOW RARE POKEMON CARD

Cards in a powered Cube tend to fall into three buckets: the "fair" bucket, the "unfair" bucket, and the "broken" bucket

one of my earliest and fondest memories of playing Commander involved dying because I decked myself with Rhystic Study (I discovered the joy of card draw before the necessity of win conditions)

Goblin War Drums (Honorable Mention) The Goblins really got a lot of love in this set

With access to blue, this lets you keep up the threat of counterspells, removal, or something nasty with Flash, and if you dont end up needing to use any of that, you get to play this at the end of an opponents turn and untap further ahead in cards and/or mana