>Ally austria before you expand
>don't annex the entire country, take 2 provinces from Pommeria so you have a coastline and can expand into the teutons
>shit on the teutons because they are not in the HRE
>wait
>form prussia ez world conquest
EU4
>not buttraping poland and becoming emperor
Poland always kills the Teutonic Order before I can.
lel, to be honest when I played Ethiopia I crushed the Jewish rebellion and converted them to Coptic. It's just a super-fun nation because you can stomp all over your neighbours, get mad gold provinces and colonize places that the Europeans take another half-century at least to reach.
Switzerland
they can't fully annex the TO, and you can always no-CB them and just siege the provinces you need so that poopeeland cant take them
Portugal. You can build a giant colonial empire while the rest of Europe is stuck in constant conflicts. The only real enemy you might have is Morocco so allying with their neighbours is a decent idea.
back to 869 ck2, and start loot the shit out of ummaayad and karlings.
Play the Teutons, increase relations with Austria and give them gold until you're at enough relation to add your provinces to the HRE, then slowly expand west by vassalizing and diplo annexing to prevent the HRE penalty and as soon as you have 10 tech you can form Prussia.
Prussia Is boring though