revert duskblade

old duskblade: UNIQUE PASSIVE: Your next basic attack on an enemy champion applies NIGHTFALL (120 second cooldown). UNIQUE PASSIVE – NIGHTFALL: After 2 seconds, deals 90 (+ 25% of target's missing health) physical damage. If the target is taken down before NIGHTFALL dealt damage, the full cooldown is refunded.

advantages: can be cleansed, can be prepared for (has counterplay) long cooldown, you can't just go into a bush and deal 200 damage again. and if u survived it, you're safe from it for 2 mins

disadvantages:

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