Is the effect "in combat..." synonymous with "during a showdown..."? As in, do they mean the same thing?
No, "in combat" and "during a showdown" are not synonymous. They represent different game states with different requirements.
According to the Riftbound Rules (2026-03-30) and RiftJudge FAQ #7557, here is the distinction:
1. Showdown vs. Combat
- Showdown: A Showdown is a "Window of Opportunity" that occurs when a battlefield is Contested (Rule 342). A Showdown can occur on its own (a "Non-Combat Showdown") if units from only one player are present, or it can be a part of a "Combat Showdown."
- Combat: A Combat is a more specific state that only exists when units controlled by opposing players are present at the same battlefield (Rule 454).
2. The Relationship
Think of "Showdown" as the broad window of interaction and "Combat" as the specific condition of conflict within that window.
- All Combat Showdowns are Showdowns, but not all Showdowns are Combats.
- If you move a unit to an empty battlefield, a Showdown begins (non-combat).
- If you move a unit to a battlefield already occupied by an opponent's unit, a Combat Showdown begins.
3. "In Combat" vs. "During a Showdown"
- "In Combat" (Rule 741.3): This specifically refers to the status of a unit. A unit is "in combat" if it is occupying a battlefield where combat is ongoing and it has a combat designation (Attacker or Defender).
- "During a Showdown" (Rule 343.1): This refers to the state of the turn. If a game effect says "during a showdown," it applies to any time the game is in a Showdown or Combat Showdown state, regardless of whether your specific unit is currently fighting.
In summary: "In combat" is a status assigned to specific units during a conflict, while "during a showdown" describes the active window of time when players are allowed to play spells and abilities because a battlefield is contested. You can be in a showdown without being "in combat," but you cannot be "in combat" without being in a showdown (specifically a Combat Showdown).