Arabella, Destroyer of Worlds

Deck grade

This is a Boros go-wide tokens/aristocrats deck built around Arabella, Abandoned Doll: flood the board with small-power tokens using doublers like Mondrak, Anointed Procession, and Assemble the Legion, draw extra cards off low-power ETBs (Welcoming Vampire, Mentor of the Meek, Enduring Innocence, Tocasia's Welcome), then swing with Arabella (and Impact Tremors/Skullclamp as secondary reach) for burst damage and lifegain. To reach A+: tighten the land base's tapped-land count and add a couple more hard board wipes/protection pieces (e.g., a second Flawless Maneuver effect) so the wide board isn't a one-sided liability against removal-heavy tables.