Create monsters at your leisure and sell them OL's love monsters! I'm intrested in playing sometimes just goblins someday or undead ect. For thematic reasons this should appeal to many OL's. Like plot decks make and sell them.
OL decks? Why the heck not I'd buy them! Sell them in packs.
Campaigns? Make many!
Hero stuff? I have no idea...maybe add a merchant NPC in some quests so heroes may spend some hard earned exp. and cash while adventuring. Give them a feeling I'm leveling up while questing feel. Or a hero raid mob that can be defeated for wealth or extra power.
Edited by Silverhelm