| Slayer（）
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| 魔法類型：
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Fire Magic
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| 等級：
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4th
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| 消耗魔法值：
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16/12
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| 持續時間：
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1 rnd/sp
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| 初級效果
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Target allied troop's attack rating is increased by eight against behemoths, dragons, hydras, (firebirds, and haspids)  .
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| 中級效果
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| Same as basic effect, except that attack bonus also affects devils and angels.
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| 高級效果
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| Same as advanced effect, except attack bonus also affects giants/titans.
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| 出現概率（%）：
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Slayer是一種 4th 級的Fire Magic魔法。 It grants the target troop the fixed +8 attack bonus against the specific lvl 7 units, depending on the level of expertise in fire magic.
This spell is the strongest attack-increasing effect in game, except possibly Frenzy but also without its defensive drawback, granting +8 attack, but only against very specific 7th level units, and only ever to a single stack per cast.
Heroes with a Slayer specialty:
Units immune to Slayer:
Units capable of casting this spell:
Efreet and Efreet Sultans
Fire and Energy Elementals
Firebirds *(not in 深淵號角) 
Phoenixes
Master Genies (advanced level)