Bound to Hextech Runes, I Stack Health Without Limit and Go on a Killing Spree

【Everyone Changes Class + Heartsteel + Hextech + No Skills, Just Basic Attacks】 After transmigrating to a world where everyone changes class, Shen Pan becomes an ordinary tank. He awakens the A-rank talent “Strength Converted to Constitution,” but the world rejects him and permanently locks his skill tree, leaving him a cripple who can only use basic attacks. Just as everyone thinks he's finished, he quietly pulls out 【Heartsteel】. Heartsteel 【Colossal Consumption】: Charge up attacks to stack maximum health without limit! Hextech 【Steel Your Heart】: Once the stacks exceed 300, triple the stacking gains! Hextech 【Heavy Hitter】: Convert health into bonus damage! Hextech 【Upgrade: Sacrifice】: Sacrifice damage to gain gold, earn unlimited gold to buy equipment, and temper your body! Hextech 【Tank Engine】: Take part in a kill to gain a percentage increase to your maximum health! With all kinds of Hextech rune bonuses, his stats keep stacking. Then, by stepping on his own left foot with his right, he gives birth to a despair-inducing monster. When the national tournament begins, the geniuses from every faction are still showing off their flashy skills while Shen Pan just stands there and lets them focus all their attacks on him. Ten minutes later, Shen Pan yawns. “Done? My turn.” He throws an ordinary punch: critical hit! Instant kill! When foreign races invade and monsters descend, Shen Pan stands in their way. “Sorry, my health bar is just a tiny bit longer than the boss's. That's not too much, right?”