[GAMEPLAY][MAJOR][BUG] Frozen Heart "item combo" dealing double damage to enemy champions

Dear Riot,

there is an encountered bug (exploit) with the item combination of Frozen heart with Liandry's Torment.

The reason for this bug/exploit is because even though Frozen heart is an attack speed debuff aura, the game has it coded as a "movement impairment". Thus because the aura is constantly classifying enemies as "movement impaired", its make Liandry's constantly passive proc its damage when the user has abilities in use on them.

Here are the item stats:

Liandry's Torment: Stats +50 ability power +300 health Passive

Unique Passive – Eyes of Pain: +15 magic penetration Unique Passive: Dealing spell damage applies a damage-over-time effect that deals bonus magic damage equal to 2% of the target's current health per second for 3 seconds. This bonus damage is doubled against movement-impaired units and capped at 100 damage per second vs. monsters.

Frozen Heart: Stats +100 armor +400 mana +20% cooldown reduction Passive Unique: Reduces the attack speed of nearby enemies by 15%. (700 range)

Step by step process to replicate:

1. Purchase Liandry's Torment
2. Test abilities on an enemy champion to see the damage done without frozen heart
3. Purchase Frozen Heart
4. Use abilities that can proc Liandry's passive with Frozen heart
5. Watch as the damage has doubled from preliminary tests