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Overview

The question of whether a unit in reserve can be targeted by the Oath of Moment ability is a common one among Warhammer 40,000 players. This powerful psychic or army-wide ability allows a player to designate a friendly unit, granting it various combat benefits. However, the precise wording and core mechanics of the game dictate its application, leading to specific limitations.

Understanding the lifecycle of a unit within a game of Warhammer 40,000, from deployment to its potential removal or reinforcement from reserve, is crucial for correctly interpreting these rules. Oath of Moment, like many other in-game abilities and spells, operates within a defined context. To accurately answer this question, we must examine the conditions under which Oath of Moment can be activated and the status of units that have not yet entered the battlefield.

How It Works

• Targeting Restrictions: The fundamental rule governing Oath of Moment, whether it's a psychic power or an army ability, is that it must target a unit that is currently on the battlefield. This means the unit must be physically present on the gaming surface at the time the ability is declared and resolved.
• Units in Reserve: Units that have been designated for reserve do not count as being on the battlefield. They are considered off the table, awaiting their designated phase to enter play. This detachment from the main combat area prevents them from being targeted by abilities that require a battlefield presence.
• Deployment Phases: Warhammer 40,000 has distinct phases for deploying units. Initial deployment occurs before the first turn, and units can later arrive from reserves during specific reinforcement steps or turns. Abilities like Oath of Moment are typically activated during the command phase or a specific phase where psychic powers can be cast, which precedes the phase where units typically arrive from reserve.
• Strategic Implications: The inability to target units in reserve with Oath of Moment significantly impacts army-wide strategies. Players must commit their units to the battlefield before they can benefit from such powerful buffs. This encourages careful planning of deployment and reserve deployment, as a unit held in reserve for a late-game entry cannot be pre-buffed with Oath of Moment.

Key Comparisons

Why It Matters

• Tactical Planning: The rule about Oath of Moment directly influences how players plan their turns. Knowing that a unit in reserve cannot receive this vital buff means players must decide whether to deploy units aggressively to benefit from Oath of Moment early or hold them back for strategic reserve deployment, foregoing the immediate advantage.
• Army Composition: For armies with many units designed for reserve deployment, this restriction means that core buffs like Oath of Moment will primarily benefit units already engaged in combat. This might encourage players to adapt their army lists to include more units capable of early battlefield presence if they heavily rely on such abilities.
• Game Balance: This rule is a key aspect of game balance. Allowing units in reserve to benefit from Oath of Moment could create unfair advantages, especially if those units were intended to arrive on a later turn and immediately receive a potent buff. It ensures that strategic decisions about unit placement and timing are meaningful.

In conclusion, the rules of Warhammer 40,000 are precise, and the Oath of Moment ability is no exception. Its targeting is restricted to units already on the battlefield, meaning any unit placed in reserve, awaiting its deployment phase, cannot be the recipient of this powerful buff. This limitation reinforces the importance of battlefield positioning and tactical deployment choices, making every decision about when and where to bring units onto the table a critical one.