You won't cast Everflowing Chalice for 0 mana since its almost useless , but for 2 mana you get a 1-mana mana rock
We've seen the trend of frequently played three-color cards being predominantly legends, but that's fine because we still get to see how each "shard" (one color with its two allies) and each "clan" (one color and its two enemies) is mechanically unique while also demonstrating diversity within the grouping
Then you can give your artifacts unearth for three mana, two of it Rakdos colored, for one last go around the bend
Instant - Arcane Color tag templates(None) Sudden Spoiling Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Until end of turn, creatures target player controls lose all abilities and have base power and toughness 0/2
While not worth a ton right now, keep these cards unpeeled and they could be worth something in the future