Underkeep Free Actions: Potions and Skill Timing

A free action is useful because it can leave the hero’s normal action available. It does not mean the ability costs no resource, has no cooldown or can be repeated indefinitely.

Check the description first

The launch-period player guide describes inventory potion use and several named skills as not consuming a normal action. Examples include Champion’s Grip, Righteous Strike, Skirmisher’s Step and Evasive Roll.

Use those examples as prompts to read your own tooltip. Do not assume that every buff, item, heal or class skill follows the same rule.

A practical timing check

1. Identify the action you want to take and read its action wording.
2. Check resource cost, duration and cooldown.
3. Decide whether the effect helps the next attack or solves the current emergency.
4. Use it when appropriate, then inspect whether the hero’s ordinary action remains available.
5. Select the main action deliberately rather than assuming the interface has queued one.

For a low-health hero, recovery may be more important than adding damage. For a temporary attack improvement, confirm that the intended follow-up is usable before paying the setup cost.

Movement still needs planning

Do not infer that a free action guarantees free repositioning after the party has already committed to the round. Read the combat state and complete the normal movement decision before attacking.

Scope and uncertainty

This page does not verify every inventory item or every upgraded skill against current game code. If an item behaves differently from the player guide, preserve the exact name, build and tooltip text. That is more useful than assuming all inventory actions are interchangeable or that an older guide proves a bug.