I have 5 cursed foundries (2 level 2 and rest level 1) . 1 level 4 guild, level 2 castle, and the rest subterranean factories level 3 I've just been building attack buildings but I want good a good build with high plunder for EB'S
Build CoE and Titan's Lair - i suggest you save 27 bil and convert straight to a lvl 3 Max those CF's anyway, build more guilds.
The CoE will keep the attack stats. Attack bldgs - bad stats bad plunder Balanced - good stats decent plunder. Defense - bad stats great plunder. From my point of view