Fable units represent the art of death itself. Fable units mark targets and deal 50% of Damage Upfront, and the iron maiden does the rest.

Instead Their Damage is soaked into a iron maiden that sweeps all damage soaked every X seconds at 135% damage, 15% of damage dealt is true damage.

Fable Units Gain Durability.

(2) - Gain 5% Durability - The Iron Maiden Sweeps down Every 8 Seconds
(3) - Gain 8% Durability - The Iron Maiden Sweeps down Every 6 Seconds
(4) - Gain 11% Durability - The Iron Maiden Sweeps down Every 4 Seconds
(5) - Gain 13% Durability - The Iron Maiden Sweeps down Every 2 Seconds
(6) - Gain 15% Durability - The Iron Maiden Sweeps down Every Second,

After 4 Sweeps, consecutive sweeps cause the iron maiden executes marked enemies below 8% health.

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visual indication -> Fiddlesticks will have a number over his head that counts down before it sweeps.