Brass's Tunnel-Grinder / Tecutlan, the Searing Rift Brass's Tunnel-Grinder does a wheel effect, then just needs a little rummaging to consistently get to Tecutlan, the Searing Rift which adds a ton of value on mana spent for your permanents
This can be used as a way to break your opponents boards, perform interruptions, and even destroy your own Fire monsters that have effects on destruction
Leo also has a bracelet on each wrist, and his blue-green hair is pulled into a single, high ponytail with two shoulder-length bangs on both sides of his face but when he doesn't wear it up (like when he's sleeping) it looks like Luna's in the same situation
Last but not least is Leyline of the Void, which shuts down any graveyard shenanigans while simultaneously saying goodbye to anything your opponents discard
That said, these cards will go in most big mana decks that are just trying to jam huge spells
No other ink has access to this quality (or quantity) of card draw, making amethyst the go-to ink for control shells