Jasper's entire kit revolves around Petrify synergies and team protection, neither of which matter against a single boss. Rockslide Rampage's ATK/Armor/Armor Break scaling requires petrified enemies, which bosses typically resist.

The 50% Max HP damage cap from Goliath Grasp is a defensive mechanic that does nothing offensively. Boulder Barrier protects allies but contributes zero boss DPS. He is a pure tank with no single-target damage role.

Elite tank for team PvP. Goliath Grasp's direct damage cap at 50% Max HP makes him nearly impossible to burst down. Boulder Barrier grants allies a massive shield when they drop low, with dodge chance on top, acting as a second life.

Petrified Punch's AoE Petrify on double crit locks down entire teams. Anti-Cobra Energy steal and doubled counter-attack damage give him strong faction matchup value. Four status immunities (Bleed, Burn, Stun, Petrify) ensure he stays active.

One of the most disruptive tanks in arena. The 50% Max HP damage cap from Goliath Grasp hard-counters burst assassins, and Boulder Barrier's dodge plus shield can save a carry from lethal damage at a critical moment.

Petrified Punch scales with consecutive Blocks, rewarding his high 25% Block Chance. The conditional AoE Petrify on double crit can swing entire fights. Immune to four major CC types, making him extremely hard to shut down.

Limited offensive contribution in Hard Mode. Petrified Punch hits only front-line targets and the enemy behind, offering no meaningful AoE for minion waves. Rockslide Rampage buffs require petrified enemies, which are unreliable against boss phases.

Boulder Barrier's ally protection has some value keeping the team alive through boss burst, and the front-line heal from Petrified Punch helps sustain. But he brings no wave clear and minimal boss DPS.

Exceptional Sewer tank. The 50% Max HP damage cap ensures he survives wave after wave without getting bursted. Boulder Barrier provides emergency saves for allies across extended fights. Rockslide Rampage's 30% self-heal per petrified enemy gives him strong sustain.

Petrified Punch's front-line heal at low HP keeps the team topped off. His counter-attack Petrify punishes enemies that focus him. The sheer durability from Goliath Grasp's stat boosts makes him one of the best attrition tanks.

Reliable campaign tank who keeps the team alive across multi-stage PvE encounters. Boulder Barrier's emergency shield prevents allies from dying to spike damage, and the 50% Max HP damage cap means he rarely falls himself.

Rockslide Rampage provides self-healing and scaling buffs when enemies get petrified. Petrified Punch's conditional front-line heal adds sustain. He lacks wave clear, but his survivability and team protection more than justify the slot.