At the beginning of your end step, gain control of target nonland permanent controlled by a player who was dealt combat damage by three or more Pirates this turn.
Flood the board with Pirates, buff them with Beckett's anthem, and swing wide to both deal damage and steal opponents' best permanents at end step. You curve out cheap aggressive Pirates, build a wide board, and close games through combat damage and incremental theft that snowballs your advantage.
Strong aggressive tribal synergy with a built-in anthem
Steal effect generates relentless card and board advantage
Grixis colors offer excellent removal, card draw, and evasion
Pirates have strong evasion and treasure-generating support
Heavily commander-dependent; loses anthem and theft engine without Beckett
Board wipes devastate the go-wide strategy
Theft trigger requires connecting with three separate Pirates, awkward against blockers
Fixes the demanding Grixis mana base alongside other duals.
Add efficient evasion granters like Coat of Arms and Door of Destinies to make the team lethal faster, and lean into treasure payoffs and extra combats (Aggravated Assault) to trigger theft multiple times. Tighten the mana base with fast lands, fetches, and signets, and include protection like Heroic Intervention to survive wraths.