The Grey HavensHow it works & interactions with other cards

Setting the Scene

When The Grey Havens enters the battlefield, its first ability triggers, allowing you to scry 1. This means you look at the top card of your library and choose to either leave it there or put it on the bottom. Afterward, the land provides a reliable source of colorless mana or a flexible colored source depending on the contents of your graveyard.

Graveyard Mana Mechanics

The final ability checks the colors of all legendary creature cards currently in your graveyard. It does not check your commander's color identity or cards that are currently on the battlefield. If you have a legendary creature that is both Red and Green in your graveyard, The Grey Havens can tap for either Red or Green mana. If you have no legendary creature cards in your graveyard, this ability cannot produce mana.

Timing and Strategy

Because The Grey Havens relies on your graveyard, it is most effective in the mid-to-late game or in decks that use self-mill strategies. Unlike lands that check for your commander's colors, this land's production can be shut off if an opponent exiles your graveyard. Always check your graveyard carefully before attempting to cast a colored spell using this land.

Interaction examples

The Scry Trigger

You play The Grey Havens as your land for the turn. The 'enters' ability goes on the stack. When it resolves, you scry 1. If you like the card on top, you keep it; otherwise, you put it on the bottom. This happens before you can tap the land for mana to cast other spells.

Comparison with Other Lands

Command TowerExotic Orchard

Unlike Command Tower, which always looks at your commander's identity, The Grey Havens needs specific cards in your graveyard. While Exotic Orchard depends on your opponents' lands, The Grey Havens is entirely dependent on your own legendary creatures having passed away or been discarded.