1. Feeder pace wins the climb
Your fighters need a stocked feeder to keep eating and growing through floors. Under-invested feeders stall climbs that your roster could otherwise clear. Keep feeder upgrades roughly in line with your best fighter.
2. Match strength to the floor
Don't send a common bird at a boss-heavy floor. Check the floor threshold and send a fighter from the top tiers for that band. A well-placed S-tier fighter clears floors a mid-tier struggles on.
3. The stopping rule
The moment a clear takes noticeably longer than one breath, pull out and upgrade. Tower pacing is about efficiency per minute, not raw floor count. Come back after feeder, attack or roster upgrades.
4. Reinvest every win
Tower rewards should flow straight back into attack and strength so the next run is faster. Bank a small reserve to cover the resource budget, then push the rest back in.
5. Boss floors
Boss floors punish weak rosters and reward strong ones. Send your single best fighter, let the feeder top it up, and stop immediately if the boss outpaces your regen. Rebuild, then retry.
Roster-check rule.
Before every serious climb, verify your fighter's tier on the tier list. Sending an outdated bird wastes a whole run.