Ajani

The only Lorwyn planeswalker not to appear in a duel deck, Ajani is an interesting character. I'm still not sure why he was on Lorwyn given that he's from Naya...

Ajani Goldmane aka "Calm Ajani"

I love this version's -1. It's easily the best ability on this card. The +1 is a worse Healing Salve (think about that; a worse Healing Salve) and the -6 is okay I guess. In a 60-card format, you'll be making a 12/12 or 14/14 at most (unless you're making a specific lifegain deck) and it doesn't come with evasion, so it doesn't make that much of a wump. Again, the ability to give all of your creatures +1/+1 counters and vigilance for a turn is just awesome.

Pros: Mass vigilance, mass +1/+1 counters
Cons: Really lackluster +1, average -6
Rating: 3/5

Ajani Vengeant aka "Angry Ajani"

This card has the second most annoying ability on any planeswalker (excluding ults): Tap target permanent; It doesn't untap during the next untap step. Seriously, that can screw up your board a lot more than you might think. The -2 of Lightning Helix is also really good, although the fact that you can only use it once without pumping the card up is unfortunate. The mini-Armageddon for an ult is a really nice touch, despite the fact it takes 4 turns to charge.

Pros: All the abilities are awesome
Cons: Takes a long time to charge/recharge
Rating: 4/5

Ajani, Caller of the Pride aka "Ajani, The Cat God" 
I'm still not sure what to think of this card, mainly because I've only seen it in play once. The +1 is the weakest of sauce. It's just bad. The -3 is amazing (possibly the best Ajani ability) and the -8 is middle of the road. The ult is really good, but it takes 5 turns to charge and, by then, you might not be making that many kittys. It's a lot like Goldmane in that sense, but at least this ult is making a lot of creatures without evasion (which is kind of like evasion) instead of just one big creature.

Pros: Really good -3, ult can make a lot of creatures
Cons: Unimpressive +1, long ult charge time
Rating: 3.5/5