Right now the Apple App Store are running a special campaign in partnership with the WWF to help raise funds for conservation efforts. It’s called “Apps for Earth” and a number of games and apps are offering special things in-game for purchase. This includes Hearthstone it seems.

Blizzard have just announced another alternate Mage Hero to use in game, and this time it’s the one-time apprentice of Medivh – Archmage Khadgar.

He’ll be available to purchase in the game of Hearthstone from now until April 24th as a Hero; but only if you’re using the iOS version of the game to make the purchase. Spend €4.99 / £3.99 to unlock him and you’ll have this playable Hero available for use on all the platforms you use to play Hearthstone upon.

It’s worth a reminder that the alternate Heroes don’t change anything in the game, besides your character portrait, the six dialogue options and the animations upon entry of a match. However, Khadgar is being offered at a lower price than previous alternate Heroes and it’s for a good cause, so it’s worth consideration.

If you want more information about the Apps for Earth campaign, track the tag #AppsforEarth on Twitter!