Understand Gastro
Useful when…
- Spread Gas Status Effect through clouds created by bouncing regurgitated enemies.
- Increase cloud duration by ranking the augment.
Effect and duration
The augment causes regurgitated enemies to bounce up to three times and create Gas clouds. At maximum rank, each cloud lasts 8 seconds and inflicts nearby enemies with the Gas Status Effect. Rank 0 clouds last 3 seconds; rank 2 clouds last 6 seconds.
Fit and investment
Gastro is a standard Grendel augment with Zenurik polarity, base drain 6, and maximum rank 3. Its rank-up examples cost 30, 60, and 120 Endo and 1,449, 2,898, and 5,796 Credits. Its directly stated rank improvement is cloud duration; the input gives no rank scaling for bounce count or status effect.
Other Grendel augments
Hearty Nourishment augments Nourish to clear Status Effects and grant Status Immunity for 5 seconds per victim in Grendel’s stomach. Catapult modifies Pulverize and is an Exilus mod. Gastroparesis adds Gas damage to primary and secondary weapons per enemy consumed. These serve different effects and do not replace Gastro’s Regurgitate-triggered clouds.
Limitations and tradeoffs
- Requires using Regurgitate and has a standard mod slot cost.
- Cloud duration improves with rank; the other listed behavior has no rank scaling specified.
Common mistakes to avoid
- Assuming the cloud duration or bounce count has a different rank scaling than listed.
- Confusing the Regurgitate augment with Grendel’s Nourish, Pulverize, or passive augments.






