Guildrun: Endless Mode Tips and Late-Game Wave Scaling
In Endless Mode, monster statistics scale exponentially with each completed floor. Guildmasters must master multiplicative scaling, where separate damage amplifiers—attack speed, critical hit chance, and status vulnerability—multiply together rather than adding linearly.
Frost Dragon Targeting Behavior
While fire and toxic dragons blanket the battlefield with area-of-effect damage, the Frost Dragon operates under strict single-target rules: the frost dragon does not AoE the backline and only hits your frontline tank.
To exploit this targeting profile, deploy an elite frontline guardian from the Guildrun Heroes Database, such as 
Logan (700 HP) or 
Gustav (650 HP, Frost and Shields). Placing your tank alone in the front row with 
Sentinel's Plate from the Guildrun Items Database triples the armor's base stats — an essential frontline mechanic detailed in our best tank guide.
Demon Enrage and Stacking Damage Checks
While the Frost Dragon tests single-target tank endurance, Demon boss encounters impose strict damage checks. You want stacking or scaling damage throughout the fight (a pacing rule shared with elite trials in how to beat Red Rift) because when the demon drops to 50% health, it enters an enraged state and applies widespread burn stacks across your entire team.
To counteract boss aggression, deploy mages to inflict 12 frost on all enemies per mage caster. Applying frost debuffs is exceptionally powerful because each stack diminishes hostile defense and slows incoming attack cadence. Concurrently, fielding sustain mystics like 
Pimenta (460 HP, Poison and Stall) restores health per second to herself for each enemy in her poison cloud, sustaining her through prolonged battles until execution thresholds are met.
Stall Milestones and Defensive Class Banners
A cornerstone relic is 
Tank's Patience Banner — ranked at the top of our best relics and items tier list — which specifies that after Stall (15), Tanks permanently gain 8 Defense.
It is crucial to understand that Stall (15) triggers exactly once when combat reaches the 15-second mark. This awards a one-time, permanent increase of 8 defense to every deployed tank, rather than repeatedly stacking every second thereafter.