My suggestion on Elise's Skittering Frenzy.
Allow Elise to gain the passive bonus attack speed and reduce the Active. You should also move the E (rappel buff) To her W so its more reliable, because of as of right now its practically useless.
Original Skittering Frenzy COOLDOWN: 12
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PASSIVE: Spider Swarm Spiderling gain bonus attack speed. ATTACK SPEED: 5 / 10 / 15 / 20 / 25%
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ACTIVE: Elise and her Spiderlings gain increased attack speed for 3 seconds. ATTACK SPEED: 60 / 80 / 100 / 120 / 140%
New Skittering Frenzy COOLDOWN: 12
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PASSIVE: Elise and her Spider lings gain bonus attack speed. ATTACK SPEED: 5/10/15/20/25% ( Elise could loses the bonus attack speed while active is on cd if it seems to powerful.)
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ACTIVE: Elise and her Spider lings gain increased attack speed for 3 seconds. ATTACK SPEED: 55/70/85/100/115%.
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ADDITIONALLY: When Elise activates Skittering Frenzy she and her spider lings gains a BONUS damage/heal buff (her passive.) DURATION: 3 seconds. Elise's bonus damage/heal - 40/55/70/85/100% Spider lings bonus damage - 10/20/30/40/50%