Im guessing theres at least one curveball that might surprise people, but once you hear it, Im guessing youll agree
Throw in Witch's Clinic, Hedgewitch's Mask, Witch's Vengeance, and Witch's Cottage for some variety in your spell and card types and youre set
Planechase Plane cards are oversized land cards, measuring about 3.5" x 5" (9 x 12.5 cm)
Bounty of the Hunt Brackwater Elemental Brago, King Eternal Brain Gorgers Brain Maggot Brainstealer Dragon Bramble Wurm Brazen Cannonade Bre of Clan Stoutarm Breaching Dragonstorm Break Down Break Down the Door Break Expectations Break Ties Breeches, Brazen Plunderer Breeches, Eager Pillager Brenard, Ginger Sculptor Breya's Apprentice Briarblade Adept Bridge from Below Brightcap Badger Brightcap Badger Brilliant Ultimatum Brimstone Roundup Brinebound Gift Bring to Light Bring to Trial Brittle Blast Brittle Effigy Broken Concentration Brokers' Safeguard Bronze Tablet Bronzebeak Foragers Broodbirth Viper Broodguard Elite Browse Bruse Tarl, Roving Rancher Brutal Cathar Brutal Expulsion Bulk Up Bump in the Night Buried Treasure Buried in the Garden Burn Away Burn from Within Burn the Accursed Burning Curiosity Burning Oil Burning Wish Bushy Bodyguard Buy Your Silence Bygone Colossus Bygone Marvels Bsium Strip C.A.M.P
The main thing is, if a cube is too large (500+ cards), the discrepancy between individual card power levels is going to be very high
