Eldrazi also runs Chalice of the Void plus a suite of 4/4 and bigger colorless threats like Reality Smasher and Thought-Knot Seer, so your own Chalice is often a mirror liability that can lock out your 0-mana artifacts just as easily as theirs, making it worth trimming. Disruptor Flute naming a key threat like Thought-Knot Seer or Reality Smasher makes that spell cost {3} more to cast and disrupts a specific card, while Dismember cheaply answers their 2/2s and 3/3s (Glaring Fleshraker, Eldrazi Linebreaker) for as little as 1 mana. Sink into Stupor is weak since bouncing a Reality Smasher or Thought-Knot Seer just delays the beating since they can replay it off cheap mana. Keep Kappa Cannoneer and the artifact core since you need to race their big colorless beaters.