Lines are quoted from the official notes; buff/nerf tags are auto-classified from the numbers and can be wrong. Covers the 14 most recent Dota 2 patches PatchMeter has fetched.
▲buffBase Movement Speed increased from 290 to 300
⇄adjustReworked Brain Drain ability into a new innate
⇄adjustSuffer In SilenceSilencer takes less damage from and deals more damage to silenced targets. Damage modifier is 5% + 0.5% per level for both reduction and amplification
✕removedArcane CurseNo longer has 1.25x slow and damage multiplier against silenced enemies
▲buffGlaives of WisdomMana Cost decreased from 14/16/18/20 to 12/14/16/18
⇄adjustGlaives of WisdomNow upgraded with Aghanim's Shard
▲buffGlaives of WisdomIncreases Int Steal by 1 and causes Glaives to bounce once to a random enemy within 450 range
▲buffTalentsLevel 25 Talent Glaives of Wisdom Damage increased from +25% to +30%