Is the new Slame hero immune to Toxic Secretion from other sources since they look like a Greige and have Toxic Secretion?

Can I save my purchased market chip for future waves or do I have to use it on the same wave I got it?

Do heroes equipped with Makeshift Wings gain the ability to move on any terrain?

Does Londil's talent Leech happen before or after retaliation?

Is the Tracker talent missing from the landmarks reference sheet?