What is end game content? Like Episode 12? or are we talking about Demon Lord Moringponia, WBR, Team Battle League?
I was doing a lot of pretty much end game content, with epsiode 11 gear, all free. Knowing your build, upgrading reusable pieces, etc can help. Don’t expect to do it after only a month though as it does take time.
CM5 at Outer wall 15 gives about 800k silver, 6 is 1mil, and 7 about 1.2mil. Do that once a day gives you about 30mil in a month…not that much but a good place to start. With Burning Weekends, use the resets (15 per weekend) gives you another 15mil, lets say 4 weekends a month. Your month would get your about 90mil just by doing OW15 CM6 (or 5 plus other things). Not to mention the other loot you get. This is all just pure silver.
Fixed ichors are better to start with as they give you a good amount of stats and bonuses and you will most likely reuse them later in the game, cards are a bit harder but joining a guild or a party that is doing a card party will help dramatically. I joined a guild and I don’t have to worry about cards after a few weeks. I would say mid end game armor like a leather set of Varnas +11/+10 can cost you 100s of millions, but you shouldn’t see it as a I’ll save until I get there. Work on getting the pieces you can reuse again and again, first. Fixed ichors can be used with the episode 11 free gear and end game varnas. Random ichors are closer to end game since you need varnas first…Fixed, Weapon, armors, randoms. - probably in that order of importance.
I will reiterate this is a Korean Style MMORPG where grinding is common place. Focus on one character, and build pieces 1 by 1 and knowledge of what will get you the best boost. I think that will help.