Unless stated otherwise, everything here is Diablo II: Resurrected build 3.3.93847, Reign of the Warlock.
Unless stated otherwise, everything here is Diablo II: Resurrected build 3.3.93847, Reign of the Warlock.

Summon a spirit pet that adds to the damage and attack rating of you and your party.
Heart of Wolverine is the Druid's level 18 spirit (Summoning tree), requiring Oak Sage; it unlocks Spirit of Barbs. Like the other two spirits it is a summon that exists to carry an aura, here +% damage and +% attack rating for you, your party and your pets. The numbers that decide it are +20% damage and +25% attack rating at level 1, +153% damage and +158% attack rating at level 20, inside a radius of 20 to 45⅓ yards.
| Level | Mana | Radius | Damage: + | Attack Rating: + |
|---|---|---|---|---|
| 1 | 20 | 20 yards | 20% | 25% |
| 2 | 21 | 21.33 yards | 27% | 32% |
| 3 | 22 | 22.67 yards | 34% | 39% |
| 4 | 23 | 24 yards | 41% | 46% |
| 5 | 24 | 25.33 yards | 48% | 53% |
| 6 | 25 | 26.67 yards | 55% | 60% |
| 7 | 26 | 28 yards | 62% | 67% |
| 8 | 27 | 29.33 yards | 69% | 74% |
| 9 | 28 | 30.67 yards | 76% | 81% |
| 10 | 29 | 32 yards | 83% | 88% |
| 11 | 30 | 33.33 yards | 90% | 95% |
| 12 | 31 | 34.67 yards | 97% | 102% |
| 13 | 32 | 36 yards | 104% | 109% |
| 14 | 33 | 37.33 yards | 111% | 116% |
| 15 | 34 | 38.67 yards | 118% | 123% |
| 16 | 35 | 40 yards | 125% | 130% |
| 17 | 36 | 41.33 yards | 132% | 137% |
| 18 | 37 | 42.67 yards | 139% | 144% |
| 19 | 38 | 44 yards | 146% | 151% |
| 20 | 39 | 45.33 yards | 153% | 158% |
| 21 | 40 | 46.67 yards | 160% | 165% |
| 22 | 41 | 48 yards | 167% | 172% |
| 23 | 42 | 49.33 yards | 174% | 179% |
| 24 | 43 | 50.67 yards | 181% | 186% |
| 25 | 44 | 52 yards | 188% | 193% |
| 26 | 45 | 53.33 yards | 195% | 200% |
| 27 | 46 | 54.67 yards | 202% | 207% |
| 28 | 47 | 56 yards | 209% | 214% |
| 29 | 48 | 57.33 yards | 216% | 221% |
| 30 | 49 | 58.67 yards | 223% | 228% |
ulvl).Every line reads lvl, so +skills from items raise the bonuses and the radius.
The Basin's page records the older values: in the 1.10–1.13 era the aura gave 7 × slvl + 13 damage and 7 × slvl + 18 attack rating, which are the same lines as today's Param5 + Param6 × (lvl − 1) and Param3 + Param4 × (lvl − 1).
The aura's damage is a percentage on your weapon damage, the same stat as Enhanced Damage from skills, and the attack rating a percentage on yours, see Attack Rating and Chance to Hit. The Basin's page lists it as applying to your pets but not to Ravens or Returned reanimates, and notes that when several players each have a Heart of Wolverine out only the highest-level aura applies to allies in range of more than one.
The spirit is a totem that follows you; the Basin lists its defense rating as 123 plus the monster-level value, 25% resistance to physical, magic, fire, lightning and cold, and poison immunity, which the row shows as poisonresist and maxpoisonresist 100. Knockback does not apply to it; other auras, buffs and debuffs do. It can be cast in town, and the aura lives only while the spirit does.
Only one of Oak Sage, Heart of Wolverine or Spirit of Barbs can be out at a time; summoning another spirit dispels the one you have.
No synergies: Heart of Wolverine neither gives nor receives one. The Basin notes that the aura's level is the skill level at the moment of casting, so Battle Command cast before summoning raises it by one, and cast on the spirit afterward raises it again.
Heart of Wolverine never touches a player; it only raises your side's damage and attack rating. The hits it improves are still cut by the player-versus-player rule, see Player versus Player.
Written from the game's tables (build 3.3.93847) and the cited pages; a per-level table is computed from skills.txt and skilldesc.txt by the same evaluator the skill pages use. A “legacy rule” is a published engine rule no table proves; a “game table” is read from the table named. · Report incorrect data