@Geyde here’s a thought
Multi-game ironman, if you ever lose, must start over from the start of the first game
FE7 HHM then FE6 HM then FE4 then FE5 SSS then FE14 Conquest Lunatic then FE16 Blue Lions Maddening then FE13 Lunatic Plus then FE11 Merciless then FE12 Lunatic Reverse