Magic 2013 — Common
Creature — Serpent
Harbor Serpent rulings:
2010-08-15: Harbor Serpent’s abilities care about lands with the land type Island, not necessarily lands named Island.
2010-08-15: The second ability checks how many Islands are on the battlefield (regardless of who controls them) only as attackers are declared. Once Harbor Serpent is declared as an attacker, it will continue to attack even if the number of Islands on the battlefield falls below five.
TCGPlayer low price:
Buy now! ▶
Creature — Dragon (5/6)
Flying
When Deathbringer Regent enters, if you cast it from your hand and there are five or more other creatures on the battlefield, destroy all other creatures.
Sorcery
You may pay rather than pay this spell's mana cost if there are thirteen or more creatures on the battlefield.
Each player sacrifices thirteen creatures of their choice.
Enchantment — Room // Enchantment — Room
When you unlock this door, search your library for a Room card that doesn't have the same name as a Room you control, reveal it, put it into your hand, then shuffle.
(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)
Promising Stairs
At the beginning of your upkeep, surveil 1. You win the game if there are eight or more different names among unlocked doors of Rooms you control.
(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)
Enchantment
At the beginning of your upkeep, destroy the creature with the least power. It can't be regenerated. If two or more creatures are tied for least power, you choose one of them.
When there are no creatures on the battlefield, sacrifice Drop of Honey.
Creature — Elemental (5/5)
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Glacial Crasher can't attack unless there is a Mountain on the battlefield.
Sorcery
This spell costs less to cast if there are ten or more nonland permanents on the battlefield.
Destroy all nonland permanents.
© 2026 MTG Assist • whatgameshouldiplaynext.com • LorcanaBorn.com • Terms of Use / Privacy Policy • Contact MTG Assist •
Magic: the Gathering is trademark and copyright Wizards of the Coast, Inc., a subsidiary of Hasbro, Inc. All rights reserved. MTGAssist.com is not affiliated with these entities.