Hit Mana Leech

Hit Mana Leech is a weapon property that was introduced with Ultima Online: Age of Shadows. It gives an attacker the ability to leech Mana from his opponent every time he successfully delivers a hit.

Amount of Mana leeched

On every successful hit you will leech 0 to X percent mana of (Damage done * 0.4) where X is the Hit Mana Leech value on your weapon:

$Mana\;Restored=0\;\;to\;\;Damage\;Dealt*Mana\;Leech\;Intensity\;%*40%$

Examples

You are dealing 100 damage against a Rotting Corpse with a 50% Hit Mana Leech weapon. On each hit, you will leech a random amount from 0 to 20 (100 * 0.5 * 0.4).
You are dealing 50 damage against a Water Elemental with a 40% Hit Mana Leech weapon. On each hit, you will leech a random amount from 0 to 8 (50 * 0.4 * 0.4).

Hit Mana Leech intensities on weapons

The maximum possible mana leech percentage you can get on a melee weapon is determined by the following formula (based on this post by MrTact on UO Stratics):

$Max.\;Hit\;Mana\;Leech=\frac{Base\;Weapon\;Speed*2500}{100+SSI}$

For ranged weapons (archery and throwing), divide the value by 2.

Melee Weapons

Maximum Hit Mana Leech and Hit Life Leech Intensities on Melee Weapons
Weapon Speed	Swing Speed Increase
Weapon Speed	0	5%	10%	15%	20%	25%	30%	35%	40%	45%	50%
2s	50%	47%	45%	43%	41%	40%	38%	37%	35%	34%	33%
2.25s	56%	53%	51%	48%	46%	45%	43%	41%	40%	38%	37%
2.5s	62%	59%	56%	54%	52%	50%	48%	46%	44%	43%	41%
2.75s	68%	65%	62%	59%	57%	55%	52%	50%	49%	47%	45%
3s	75%	71%	68%	65%	62%	60%	57%	55%	53%	51%	50%
3.25s	81%	77%	73%	70%	67%	65%	62%	60%	58%	56%	54%
3.5s	87%	83%	79%	76%	72%	70%	67%	64%	62%	60%	58%
3.75s	93%	89%	85%	81%	78%	75%	72%	69%	66%	64%	62%
4s	100%	95%	90%	86%	83%	80%	76%	74%	71%	68%	66%
4.25s	100%	100%	96%	92%	88%	85%	81%	78%	75%	73%	70%
4.5s	100%	100%	100%	97%	93%	90%	86%	83%	80%	77%	75%
4.75s	100%	100%	100%	100%	98%	95%	91%	87%	84%	81%	79%
5s	100%	100%	100%	100%	100%	100%	96%	92%	89%	86%	83%

Ranged Weapons

Maximum Hit Mana Leech and Hit Life Leech Intensities on Ranged Weapons
Weapon Speed	Swing Speed Increase
Weapon Speed	0	5%	10%	15%	20%	25%	30%	35%	40%	45%	50%
2s	25%	23%	22%	21%	20%	20%	19%	18%	17%	17%	16%
2.25s	28%	26%	25%	24%	23%	22%	21%	20%	20%	19%	18%
2.5s	31%	29%	28%	27%	26%	25%	24%	23%	22%	21%	20%
2.75s	34%	32%	31%	29%	28%	27%	26%	25%	24%	23%	22%
3s	37%	35%	34%	32%	31%	30%	28%	27%	26%	25%	25%
3.25s	40%	38%	36%	35%	33%	32%	31%	30%	29%	28%	27%
3.5s	43%	41%	39%	38%	36%	35%	33%	32%	31%	30%	29%
3.75s	46%	44%	42%	40%	39%	37%	36%	34%	33%	32%	31%
4s	50%	47%	45%	43%	41%	40%	38%	37%	35%	34%	33%
4.25s	50%	50%	48%	46%	44%	42%	40%	39%	37%	36%	35%
4.5s	50%	50%	50%	48%	46%	45%	43%	41%	40%	38%	37%
4.75s	50%	50%	50%	50%	49%	47%	45%	43%	42%	40%	39%
5s	50%	50%	50%	50%	50%	50%	48%	46%	44%	43%	41%

Imbuing

The following resources are required to imbue the highest intensity of Hit Mana Leech (see the tables above for the exact maximum value):

Item Properties
Stat Modifiers	Dexterity Bonus • Hit Point Increase • Intelligence Bonus • Mana Increase • Stamina Increase • Strength Bonus
Regenerations	Hit Point Regeneration • Mana Regeneration • Stamina Regeneration
Hit Effects	Assassin Honed • Blood Drinker • Battle Lust • Hit Cold Area • Hit Curse • Hit Dispel • Hit Energy Area • Hit Fatigue • Hit Fire Area • Hit Fireball • Hit Harm • Hit Life Leech • Hit Lightning • Hit Lower Attack • Hit Lower Defense • Hit Mana Drain • Hit Mana Leech • Hit Physical Area • Hit Poison Area • Searing Weapon • Splintering Weapon • Hit Stamina Leech
Historic	Ruin • Force • Might • Mystic • Power • Vanquishing • Newbified
Damage Types	Physical Damage • Fire Damage • Cold Damage • Poison Damage • Energy Damage • Chaos Damage • Direct Damage
Magic	Casting Focus • Faster Casting • Faster Cast Recovery • Lower Mana Cost • Lower Reagent Cost • Mage Armor • Mage Weapon • Resonance • Spell Channeling • Spell Damage Increase • Spell Focusing • Spell Consumption
Weapon	Damage Increase • Swing Speed Increase • Use Best Weapon Skill • Weapon Speed • Hit Chance Increase
Archery	Balanced • Damage Modifier • Lower Ammo Cost • Range • Velocity
Death & Theft	Blessed • Cursed • No-Drop/No-Trade • Insured • Owned By
Damage Dealing	Damage Eater • Rage Focus • Reactive Paralyze • Reflect Physical Damage • Soul Charge
Other	Artifact Rarity • Defense Chance Increase • Durability • Elves Only • Enhance Potions • Gargoyles Only • Lifespan • Lower Requirements • Luck • Mana Burst • Mana Phase • Night Sight • Self Repair • Shard Bound • Skill Bonus • Strength Requirement • Uses Remaining • Weight
Negative	Antique • Brittle • Cursed • Ephemeral • Prized • Massive • Unwieldy • Unlucky •