Stein found the portal to the future and traveled to the Neth Empire, where he learned new secrets to further advance the Sentinel.
Deploys a drone dealing ATK [38/57/76]% magical damage 5 times.
[ values are 1-chain / 2-chain / 3-chain ]
Upon being healed, immediately deploys a drone dealing ATK 115% magical damage 5 times and reducing the target's RES by 7 for 3 sec. (Once every 3 sec)
A weapon bound to this hero. It upgrades along the grade 7 to 9 chain and changes this hero's passive while equipped.
Crafted and enhanced at the Smithy (its Soulbound Weapon button) from Iron and Soulbound crystals (from the Fortress of Souls raid or the Arena shop), plus Honor and Gold. Bound to its hero; not forged like an ordinary weapon or found as a drop.

Each time Block Skill is used 3 times, ATK increases by 8% for 12 seconds. (Max 3 stacks)

Each time Block Skill is used 2 times, ATK increases by 8% for 12 seconds. (Max 3 stacks)

Each time Block Skill is used 2 times, ATK increases by 9% for 12 seconds. (Max 3 stacks) Every 10 seconds, a Satellite Bombardment dealing 210% ATK magic damage 10 times triggers on the rearmost enemy.
Alternate appearances for this hero. A costume is purely cosmetic: it shares the hero's stats, skill, and passive.
Another personality module that Stein brought back through a dimensional gate. Sealed off from his medical legacy code and rebooted in a full-armor frame that retains only the combat algorithms, this Sentinel no longer asks after one's health before opening fire. The traces of the android Stanya once dreamed of sleep somewhere deep beneath thick armor.
Sentinel, the combat android born from Stein's hands, has no circuit for hesitation. The moment a target is entered, six blades take their positions with zero margin of error.