Traps you make- buy trap tools from the trader and add thunderbugs for shock traps and nets (Ivy+spiderweb) for pitfall traps.
You can send buddies off to trade with the Argosy for most of those ingredients too, check it out at the buddy plaza. If it’s not there yet, it’ll open up as you progress through the game.
The Black Belt armour is designed to help new players out, it’ll be good for your low rank campaign, just keep an eye on armour options as you move into high rank (after defeating Magnamalo).
Not sure about which event quests you have access to, but if it isn’t there yet, you might need to beat the various campaigns. It’ll all open up in time