ExBoss MRT Reminder is a lightweight bridge addon that connects EXBoss (cast detection for dungeons, M+ and raids) with MRT's Reminders module.

It adds three new trigger types directly into MRT's reminder editor — no separate UI, no config files. Open MRT Reminders, create a reminder, and pick one of the new conditions from the dropdown.

New trigger types

EXBoss: Trash Cast Start

Fires when a tracked trash mob begins casting a specific spell. Works like MRT's native Unit Cast trigger: the reminder stays visible for the duration of the cast and is automatically dismissed when the cast finishes or is interrupted. Set dur = 0 for a pure interrupt window that disappears the moment the cast ends.

EXBoss: Trash Cast (early)

Fires before the cast begins, using EXBoss's own cooldown prediction. Use {timeLeft} in your reminder text to show how many seconds remain until the next cast. The optional Min remaining (s) field filters out alerts with too little lead time. The prediction timing comes straight from EXBoss, so it correctly accounts for spells whose cooldown runs from cast start vs cast end.

EXBoss: Timeline Hint

Fires when a boss timeline event is approaching. Filter by Encounter ID and use {timeLeft} for the countdown. A timed alert that disappears on its own.

Configurable fields

All trigger types support: Spell ID, Spell Name, NPC ID / Encounter ID (comma-separated lists accepted; leave blank to match all), counter, delay, active time, and the standard MRT invert/behavior options.

Automatic cleanup

Trash cast reminders are dismissed as soon as the cast ends (interrupted or completed) and when a mob resets — no leftover alerts stacking up between pulls.

Works alongside BigWigs and DBM

EXBoss and BigWigs/DBM use separate event channels. Boss reminders (BigWigs/DBM) and EXBoss reminders work side by side in the same MRT session without any conflict.

Localization

English (base), Spanish (esES / esMX). The interface language follows your client automatically.

How it works

The addon patches MRT and EXBoss entirely at runtime — it injects new trigger types into the in-memory tables both addons already expose. No MRT or EXBoss files are modified, so updates to either addon won't break the bridge.

Requirements

MRT (Method Raid Tools) — required
EXBoss + ExwindCore — required for triggers to fire (the addon loads without them but does nothing)

Debug commands

/ebmrt debug — toggle a chat log of received events and fired triggers
/ebmrt status — show dependency and injection status

EXBoss only detects casts inside instances (dungeons, M+, raids). Triggers will not fire in the open world — this is expected behavior.

ExBoss MRT Reminders