Prismatic Ending is exile-based removal that answers a Chalice of the Void already on the battlefield. Chalice costs {X}{X}, and X is 0 everywhere except on the stack, so on the battlefield its mana value is 0 regardless of its charge counters. A single color of mana is therefore enough to exile it, whether it is set to 1 and locking us out of our one-drops like Swords to Plowshares, Thoughtseize, Ocelot Pride, and Guide of Souls, or set to something else. Its limit is that it can only exile permanents with mana value up to the number of colors we spend (at most three with W, B, and R), so it cannot answer bigger threats like Reality Smasher, but it does cleanly answer cheaper permanents like It That Heralds the End, Wastescape Battlemage, Glaring Fleshraker, and Eldrazi Linebreaker. Disruptor Flute is a flexible tax card. Named on Chalice of the Void, it makes casting each Chalice cost {3} more, which is most useful if it is already on the battlefield before they cast it. Named on Eye of Ugin, it stops their {7} tutoring ability, since that is not a mana ability. It can also be named on a key spell such as Thought-Knot Seer or Kozilek's Command to make each copy cost {3} more. Cabal Therapy is weak since Eldrazi decks are full of similarly-costed colorless threats and discarding one rarely disrupts their gameplan meaningfully. Goblin Bombardment's sacrifice outlet matters less than keeping removal available for their efficient 4/4s and 5/5s.