Anti-tank toolkit

Blighting Jewel, a TFT Artifact item

Blighting Jewel

artifact

Description

Dealing magic damage reduces the target's Magic Resist by 6. If their Magic Resist is 0, grant the holder 2 Mana instead.

Ability damage can only trigger on each enemy once every 0.5 seconds. 

Source

  • Artifact

Blighting Jewel enables

  • The unit-level resource that gates ability casts — champions cast once their mana bar fills, so low-mana units cast more often than high-mana ones. Spear of Shojin (mana per attack) and Adaptive Helm (amplifies Mana from all sources) push casts faster, alongside starting-mana augments. Blue Buff is no longer a mana item in Set 17 — it's now an AD/AP amp.

  • Reduces the target's Magic Resist by 30% for a duration.

Blighting Jewel counters

  • The magic-defense stat that reduces incoming AP damage. Many sustain items, the Bastion frontline trait, and "Gain X Armor and Magic Resist" effects grant or scale off it; Shred is its inverse.