Here's a concise patch history for Kassadin in League of Legends, focusing on the most significant changes:

Latest Changes:

• Force Pulse AP ratio reduced to 70% from 80%
• Null Sphere no longer interrupts Sion's Unstoppable Onslaught
• Fixed various bug fixes for ability interactions and visual effects

Major Balance Updates:

Void Stone (Passive)

• Magic damage reduction reduced to 10% from 15%
• Now perpetually ignores unit collision
• Removed attack speed conversion from reduced damage

Null Sphere (Q)

• No longer silences but interrupts channels
• Shield now grants 40-160 (+30% AP) magic shield for 1.5 seconds
• Base damage adjusted to 65/95/125/155/185
• Range reduced to 650 from 700

Nether Blade (W)

• Reworked to deal 20 (+10% AP) bonus magic damage on-hit
• Active: Deals 40-140 (+60% AP) bonus magic damage
• Restores 4-8% missing mana (20-40% against champions)
• Cooldown reduced to 7 seconds from 9

Force Pulse (E)

• Now reduces cooldown by enemy ability casts within 1800 units
• Slow duration reduced to 1 second
• Slow strength increased to 50-90%
• Base damage adjusted to 60/90/120/150/180

Riftwalk (R)

• Maximum stacks reduced to 4 from 10
• Stack duration increased to 15 seconds
• Mana cost now doubles with each stack
• Base damage reduced but scales with maximum mana
• Range standardized at 500

Core Gameplay Changes:

• Shifted from silence-based disruption to shield-based survival
• Improved mana sustain through Nether Blade
• More strategic Riftwalk usage with stack management
• Enhanced counterplay through reduced crowd control duration

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