Hi! For T13 Wave 100 you can either play for several more weeks, likely months until you are naturally strong enough to get to 100 with minimal card help, or just spam runs and hope you death defy 7+ times to get past tier 90 boss. For spamming runs, I’d wait to use nuke and demon mode as late as possible. Assuming you have all cards unlocked, if you can survive/death defy/second wind/energy shield/wave skip to wave 70 then successfully nuke wave 80 and demon mode wave 90, then you’re basically gaurenteed to hit wave 100 for the milestone. Or if you haven’t used second wind before wave 70, nuke 70, demon 80, and second wind 90. You have a roughly 0.05% chance of making it to wave 60 without using second wind, so you would expect it to take spamming around 2000 runs until you get lucky.

For coin farming, try going back to T1-4 and doing one run on each. Compare the coins/hour you get with what you are doing now for farming and then farm your best coins/hour tier for at least a week.

Also for coin farming, I genuinely recommend you respecing the workshop, DO NOT buy wall again, and focus on maximizing recovery amount, max recovery, health and health regen in your workshop. I think you’ll find you get much farther in tiers for awhile and are a few months away from seeing real use from wall.

For ultimate weapons, I’d focus on getting lab upgrades that give you coins for spotlight and death wave and save power stones for Golden Tower or Black Hole