In the recent Patch 1.4.92, new skill adjustments were made for ML Heroes: Kaja, Khufra and Esmeralda which highlights more nerfs than buffs.
KAJA
Ring of Order: Base damage reduced from 150-350 to 120-270. Cooldown reduced from 8-6.5 to 7-5s. Mana Cost reduced from 60-110 to 50-75
Divine Judgment: Skill range reduced by 15%
Wrath Sanction: Max HP based bonus damage adjustment from 6% to 4% Magic Power Bonus increased from 70% to 100%
KHUFRA
Tyrant’s Revenge: Max HP based bonus damage adjusted from 10% at all levels to 7.5%-10%
Bouncing Ball: Max HP based bonus damage adjusted from 5% at all levels to 3%-6%. Physical and Magic Defense gain adjustment from 60%-100% to 50%-100%. Slow duration reduced from 0.5 to 0.2s
ESMERALDA
Frostmoon Shield: Base Shield adjusted from 420-770 to 300-700.
Stardust Dance: Slow effect reduced from 25% to 10%. Optimized skill description.