Operator overview: Shalem
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Shalem is a 5★ Arts Protector Defender who specializes in DPS and Defense, and the welfare Operator of Phantom & Crimson Solitaire, awarded through Castle Notes upon accumulating 5450 
alongside 
Shalem's Token by accumulating 6750 , 8125 , 9600 , 11500 , and 13000 . If the player haven't obtained Shalem yet, he may be available as a Temporary Recruitment Operator during Crimson Solitaire runs, but can only use Rapid Onslaught and have no dialogues.
As an Arts Protector Defender, Shalem trades his HP and DEF for ATK and base RES which increases in each promotion (5 initial, 10 at Elite 1, 15 at Elite 2), and his attacks will deal Arts damage while his skill is active; like Protector Defenders, Shalem can block up to three enemies and has a very short range of the tile he was on.
Talents
- Land of Memories only works while Shalem is deployed in Crimson Solitaire operations, which buffs his ATK and ASPD.
- Proclamation of Doom gives Shalem's attacks a chance to temporarily lower the target's RES.
Skills
- Rapid Onslaught reduces Shalem's attack interval, buffs his maximum HP, and causes his attacks to hit multiple enemies equal to his block count while active.
- Carnival of Self-Immolation has defensive SP recovery, which extends Shalem's range to 2×3 tiles ahead of him and causes his attacks to deal multiple hits to random enemies within that range, dealing a lesser portion of his ATK each, but causes Shalem to lose HP over time (which can knock him out) while active.
Base skill
Defender Expert α speeds up the skill Specialization training of Defenders by 30% while Shalem is assigned as the trainer in the Training Room. At Elite 2, Defender Expert α becomes Combat Techniques: Arts Protector which speeds up the training further by 45% if the trainee is an Arts Protector Defender.
Summary
Shalem is a good Arts Protector Defender who, while only performing at peak during Crimson Solitaire, can not only tank enemy attacks, especially Arts, and punishes them with powerful melee Arts attacks.