Suggestion: Make the Frozen Heart similar to the Abyssal Scepter rework

The "intermittent pulse" thing is really cool. I love these on-off timing-based effects and I think Riot should push them even farther. Frozen Heart I think is a great target since it has a lot of hard-to-appreciate power (15% reduced damage from autoattackers!) and this change I hope would make it more obvious if the item is doing something for you.

Example:

Frozen Heart +90 Armor +400 Mana +20% CDR UNIQUE Passive - Pulse: Every 4 seconds, create a 550 radius ring of frost which persists for 4 seconds. Enemies who stand on the ring's boundary have their attack speed slowed by 25% for 0.25 seconds. UNIQUE Active: Restart Pulse's cooldown (10s cooldown).

Active resets the passive cooldown without proc'ing it again, which is useful if e.g. you want to sync up your Pulses with an ally's.

Main downside is it's not very useful against certain melee autottackers like Tryndamere and Irelia compared to current version of Frozen Heart. But if you position yourself as a tank so they have to stand on it to attack your carry, it can still be very strong.

Thoughts?