TFT Set 17.4

Anti-tank toolkit

Malware Matrix (Radiant), a TFT Set 17 Psionic mod Radiant

Malware Matrix

psionic

Attack Champion: Dealing physical damage to an enemy reduces the target's Armor by 2.
Magic Champion: Dealing magic damage to an enemy reduces the target's Magic Resist by 2. 

At (4): If the holder is Psionic, every 3rd attack cleaves, dealing 75 Attack Damage physical damage to nearby enemies.

Recommended users: Master Yi and Pyke.
Ability Damage Cooldown: 0.75 seconds.

Source

Malware Matrix enables

  • Sunder

    Reduces the target's Armor for a duration.

  • Shred

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

Malware Matrix counters

  • Armor

    The physical-defense stat that reduces incoming AD damage. Tank items, the Bastion trait, and champions or items that grant flat Armor all feed into this mechanic, alongside the handful of effects that scale a bonus off a unit's Armor value. Sunder is its inverse — a debuff that reduces enemy Armor.

  • Magic Resist

    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.