@cccLimbus@Eepy_Nashie@LimbusCompany_B Chains of Others and Snagharpoon will also work (though you'll need to repeatedly use them)
Thankfully the Prey status effect helps out with ego resources
@Eepy_Nashie@LimbusCompany_B as his burn application relies on ammo, I suggest clashing with his weaker skills first (prioritizing his defense skill) so that he wastes ammo on said weak skills, especially after his ammo-consuming coins become unbreakable
also consider using Roseate Desire Ish for the passive