Wolf

Companion: a summon, hireling or ally

ClassicHD

1×2×3×

The Druid's Werewolf form

The form's bonuses come from the skill's level (required character level 1). Per skill level:

Skill level	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
+% Attack Speed	20	28	35	40	45	48	51	53	56	57	59	61	62	63	64	66	66	67	68	68
+% Attack Rating	50	65	80	95	110	125	140	155	170	185	200	215	230	245	260	275	290	305	320	335

From the game files (monstats.txt, monlvl.txt). Picture: the original sprites from the game.