The Battlefield

Plains

$0.11

Vow of Duty

$0.30

AI DraftSep 14, 2026

Plains + Vow of Duty

AI draft — not yet human-reviewed. Check citations and flag anything that looks wrong. How pages are reviewed.

Overview

You can’t attach Vow of Duty to a Plains because Vow of Duty is an Aura that says “Enchant creature” and an Aura spell must target a legal object as defined by its enchant ability ; if somehow an Aura ends up attached to an illegal object it is put into its owner’s graveyard as a state-based action .

Step 1

Vow of Duty is an Aura that has the enchant ability “Enchant creature,” so its spell requires a legal creature target when cast .

Step 2

A Plains is a land permanent, not a creature, so it is not a legal target for an Aura with “Enchant creature”; therefore you cannot choose a Plains as the target when casting Vow of Duty .

Step 3

If Vow of Duty resolves on a legal creature, it enters the battlefield under its controller’s control and becomes attached to that creature .

Step 4

While attached to a creature, Vow of Duty’s continuous effects apply: the enchanted creature gets +2/+2, has vigilance, and can’t attack the aura’s controller or planeswalkers that player controls; remember that an Aura’s controller is separate from the enchanted creature’s controller .

Step 5

If an effect somehow caused Vow of Duty to be attached to a Plains (an illegal attachment), state-based actions would put Vow of Duty into its owner’s graveyard immediately .

Step 6

If Plains becomes a creature (by some other effect), it could become a legal target for Vow of Duty while it is a creature, and the aura could be cast targeting it or attached to it legally at that time .

Resolution

You may not cast Vow of Duty targeting a Plains (it’s not a creature) because an Aura must target a legal object as defined by its enchant ability when cast . If an effect somehow put Vow of Duty onto the battlefield attached to a Plains despite that (for example, a replacement or layer effect), it would be an illegal attachment and Vow of Duty would be put into its owner’s graveyard as a state-based action . If Vow of Duty is legally attached to a creature, it grants +2/+2, vigilance, and prevents that enchanted creature from attacking the aura’s controller or planeswalkers that player controls; note an Aura’s controller is separate from the enchanted creature’s controller .

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