We didn't actually buff Tome of Light per se. It was just twice as good as the tooltip said it was, and since we didn't think that a nerf was in order, we're just correcting the tooltip for 4.3. You guys shouldn't notice a change to Tome of Light.

You should notice a change to Holy Word: Serenity, though. As you know, that ability hasn't always benefited from the 25% crit bonus that it's supposed to get. It was a little tricky to figure out why that was happening, but we've gotten to the bottom of it. Holy Word: Serenity should be fixed for 4.3, so you should notice a change there.

TCG Loot card mounts like the Spectral Tiger have been BoE for a long time now (since patch 3.2), and that was and continues to be well-received, and as far as we've been able to tell hasn't had any adverse impact to the game or economy - despite them selling for sometimes astronomical amounts of gold.

It's potentially worth noting that no new gold is being introduced into the game's economy with those mounts or the new Guardian Cub pet.

Our goal with the Guardian Cub is to provide alternative ways for players who don't want to spend real money to add these pets to their collection. Even though this has been available a while now with the TCG mounts, this is obviously a new kind of way to deliver Pet Store pets, and we're definitely interested to hear your feedback and ultimately see how this will play out.