Replenish in Premodern: the mass recursion spell that put a deck on the Reserved List watchlist

What it does

Replenish costs four mana (three white and one generic) at sorcery speed and returns all enchantments from your graveyard to the battlefield. Every enchantment. No targeting. No limit. For a deck that has spent the early turns discarding or milling enchantments, Replenish resolves the entire package simultaneously and creates an insurmountable board state in one spell. The Replenish archetype is built around this single card: fill the graveyard with enchantments like Parallax Wave, Parallax Tide, Serra’s Sanctum, and Opalescence, then resolve Replenish for a lethal board. Parallax Tide was banned on January 18, 2026 — any Replenish analysis must account for a post-Tide version of the deck.

When it’s played

Replenish is the singular win condition of the Replenish archetype, which is one of the format’s most prominent combo-control decks.

The Replenish deck uses Frantic Search, Attunement, and Peaceful Coexistence in the early game to fill the graveyard with enchantments. Serra’s Sanctum generates massive mana once several enchantments are in play. Opalescence turns enchantments into creatures for the attack. Pre-ban, Parallax Tide handled land exiling for a near-lock; post-ban, pilots have adapted with Decree of Justice and other finishers. Andrea Mengucci piloted a UW Replenish build to the 2025 Italian National Premodern Championship undefeated.

The math / interaction worth knowing

Replenish is a four-mana sorcery, which means it needs protection. The most dangerous moment is during the resolution window on your turn — opponents can counter Replenish, destroy Serra’s Sanctum in response, or respond to the triggers once the enchantments enter the battlefield. Blue Replenish builds run Counterspell and Force Spike to fight through opponent’s counters; the common opening is to cast Replenish only when you have backup.

Replenish puts enchantments into play simultaneously. This means all triggered abilities trigger at once. If you put Opalescence and Parallax Wave into play simultaneously from Replenish, Opalescence turns all enchantments into creatures — but since Opalescence enters at the same time as everything else, the creatures are immediately available. The order of simultaneous triggers matters for determining which enchantment-creatures are active, and the Replenish player chooses the order in which simultaneous enters-the-battlefield triggers resolve.

The post-ban adaptation. With Parallax Tide banned, the Replenish deck lost its land-locking mechanism. The current list relies more heavily on Decree of Justice and Parallax Wave alone for board control. Wave can still flicker creatures (including your own, to reset their entered-the-battlefield triggers), and with multiple enchantments in play, Serra’s Sanctum generates enough mana to rebuild after a disrupted Replenish. The deck is slower post-ban but still competitive.

Decklists worth studying

When deck data populates, look for UW Replenish lists from post-ban MTGO Premodern Challenges and any available Lobstercon 2025 lists. Andrea Mengucci’s 2025 Italian National-winning configuration is a reference point for pre-ban UW builds — the post-ban adaptation will be visible in current challenge results.

Related cards

• Serra’s Sanctum — The engine land that generates explosive mana with many enchantments in play.
• Opalescence — Turns enchantments into creatures for the attack.
• Parallax Wave — The remaining land/creature interaction piece post-Tide ban.
• Frantic Search — The discard-based engine that fills the graveyard with enchantments before Replenish.
• Decree of Justice — The post-ban finisher and alternate win condition.
• Counterspell — Protects Replenish from being countered during the resolution window.