Going to have to disagree 100% here.
1. Wounded Prey is a free action that costs you zero mana.
2. Despite the fact that it generally doesn't work against Necromancers (Every mage has a matchup that is tough), I normally gain 10+ extra dice from WP. Battle Skill doesn't come close to the same number in a similarly timed match.
3. 80% of creatures in this game are living. This means Wounded Prey works on a LARGE majority of the creatures you'll encounter.
I think you guys are severely underrating this ability
While it can act like a free Marked for Death (but only for Mage and animal
melee attacks), it has several limitations:
- Does nothing against a solo mage;
- Does nothing against a "buddy" if the "buddy" is (a) non-living (and that's more popular these days considering a desire for Psychic Immunity) or (b) if you don't intend to kill the buddy;
- Requires damage on the living enemy creature... so it often does nothing against Level 1 swarmy creatures since they either die to the first successful attack or would die to the second even without the melee +1.
While 80% of creatures are living, I'm not sure 80% of all creatures you're likely to encounter are living, and won't die to 2 or fewer attacks even without the bonus.
I'd guess that I typically get 3 or 4 extra dice out of it in Arena death-matches, but sometimes none, and would prefer something like Battle Skill 'cause at least that works against the enemy Mage, and the goal of the Arena death-match is to kill the enemy Mage (without dying in the process), not to hunt down all the enemy Living creatures that might get summoned.
That said, it works great if J-Beast amasses a swarm against a mage with a "few big" living creatures that you intend to hunt down before going after the opposing mage. And it works well in Domination since an alternate win condition involves killing Level 2-3 Sslaks/Usslaks that typically require a few bites each. Idol of Pestilence or similar would help to activate Wounded Prey against any/all living non-Mage creature(s) if it didn't also hurt your (presumably low-level) animals. Consecrated Ground or an early Plagued might help to put a point of damage on one or more potential Wounded Prey targets so your animals can benefit even on the first bite.
Summary: Wounded Prey would be a lot better if it could target the enemy Mage, and/or if it could apply to an undamaged target (for improving the chances of one-shotting Level 1 swarmy creatures, and generally getting one more use out of it per enemy creature), and/or if it was worded like Marked for Death (e.g. "gain +1 attack die") so that it also worked for Johktari's non-spell (and spell, for that matter) ranged attacks, 'cause as it stands, she can't stack the benefits from both Wounded Prey and her Archery skill.
By the way, comparing Battle Skill to Wounded Prey isn't really fair. You need to compare the sum of each Mage's abilities and stats. Certainly nobody is going to argue that Fast is as good as Quicksummoning, nor that Archery is as good as Pet. And I definitely don't think the sum of J-Beast's abilities are so much stronger than the sum of Straywood's to justify a -2 Life penalty - quite the contrary!
(And even if you wanted to pair up abilities for comparison, I'd suggest Battle Skill > Archery, Pet > Fast, Quicksummoning >> Wounded Prey, and 36 Life > 34 Life).
Another comparison: [mwcard=MW1E27]Marked for Death[/mwcard] costs 4 (or 6, with Magebind) mana to do something strictly better (e.g. applies to melee and ranged attacks, etc), albeit it can be Dispeled. [mwcard=MW1I03]Call of the Wild[/mwcard] costs 4 mana and lets your animals choose any targets they want (living, non-living, creatures, conjurations, enemy Mage...), although it only lasts 1 round and doesn't give a bonus Melee +1 to your Mage (which you probably aren't benefiting from anyway if you're making use of Archery). So Wounded Prey is probably worth a little less than 4 mana per round (against multiple targets) or per target (for multiple rounds), depending which spell you compare it to. How much is Pet worth? And Quicksummoning?
(Fast is worth as much as an unremoveable Cheetah Speed; Archery is worth less than Hawkeye, since it doesn't work on Attack Spells, although it can't be Dispeled; Battle Skill is worth a little less than Wolf Fury, or half a Bear Strength)