mtg cards with x cost What are creature colorless mana cost? copy that spell or ability Ask a Magic Judge —

Cavern of Souls The third in our land trifecta, Cavern of Souls keeps your tribal decks humming by not letting important creatures get countered

Destroy target enchantment

It becomes card draw for you and a massive advantage with Kaya, Orzhov Usurper for graveyard hate, flicker on Charming Prince, and good old targeted exile removal like Despark

Aurelia and her retinue are excellent as part of your battallion, and the MKM Aurelia can generate plenty of card draw for anyone attacking wide

Technically Soundwave, Sonic Spy/Soundwave, Superior Captain also plays in this space, but the card is dumb on so many levels that I refuse to acknowledge its existence beyond this paragraph