Just Like That!
Source
Galaxy Exploration Manual pg. 16
When you or an ally scores a critical hit against a creature, as a reaction, you can encourage a number of allies equal to your Charisma modifier to continue fighting that creature. For 1 round, the encouraged allies can score a critical hit against the creature on a natural 19 or 20; this effect ends immediately after an encouraged ally scores a critical hit against the target. Once you use this ability, you can’t use it again for 1 minute.
Dragonscript
ID
c5dd0a4bd1aac1ab5c429e45