It follows on from the dragon-laden MTG Tarkir: Dragonstorm and racing-themed MTG Aetherdrift
Return it to the battlefield under your control tapped and attacking at the beginning of the declare attackers step on your next turn, then return Meandered Towershell to the battlefield under its owner's control attached to that creature." As the creature returns to the battlefield because of the delayed triggered ability, its controller chooses which player, planeswalker, or battle it's attacking
The result is a deck that snowballs from casting spells into mana generation and a swarm of tokens
Become Anonymous This reminds me of the three-card monte con game, where you try to guess which of three cards is the money card, and Become Anonymous does a cool job of mimicking that
Commander Saruman, the White Hand Whenever you cast a noncreature spell, amass Orcs X, where X is that spell's mana value
However, black specializes in sacrificing creatures, while red specializes in sacrificing artifacts and generic permanents