TFT Set 17.4
Fission+, a TFT Set 17 Factory New crate item

Fission+

graves

+3 Mana Regen and 20% Attack Damage

Source

Fission+ enables

  • Mana

    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.