Infected Broodmother Trinket
Tier 3 Blastwave
Infected Broodmother Trinket is a Tier 3 trinket in Grounded. Its effect is Blastwave. In-game it is described as: "Extremely rare memento from the Infected Broodmother."
A trinket occupies a utility slot — it grants a passive effect rather than raw armor or damage, so it competes with your damage and survival perks for that slot.
The effect it grants is Blastwave, which is what you are really equipping it for; the slot is better spent here than on a trinket whose effect you will not trigger.
You get it via Infected Broodmother.
Verdict: Overall Infected Broodmother Trinket is a Tier 3 trinket best used when its Blastwave effect fits the fight ahead.
How to get: Infected Broodmother
Extremely rare memento from the Infected Broodmother.
