Mage also supports booster drafting and sealed with either computer or human players or both. I've always found booster drafting to be infinitely fun. Forge's boosting drafting is OK but since the AI is only average it doesn't always test my skills and I can beat the AI with pretty bad cards. Mage should provide great fun drafting and playing sealed deck against the computer and your friends.
Mage has plenty of cards, 2,450 to be exact. Mage implements many full sets like Magic 2011 and 2012 as well as Scars of Mirrodin and Mirridon Besieged. The statistics for other sets are listed below.
(Updated these stats, thanks to North.)
Magic 2012: 182/249 (100%)
Magic 2011: 249/249 (100%)
Scars of Mirrodin: 220/249 (100%)
Mirrodin Besieged: 122/155 (100%)
New Phyrexia 148/170 (87%)
Zendikar: 186/253 (73%)
Worldwake: 77/145 (53%)
Rise of the Eldrazi: 162/248 (65%)
Mage is very unique because it also has multiplayer games. People have asked me, “Will Forge every have multiplayer?” and I always respond, “No, because it is too freakin complicated.” Obviously the makers of Mage don’t feel that way.
Mage offers multiplayer games and you can mix human and computer players. Other multiplayer options include setting the “attacking options” which lets you attack multiple players, or only the player on your left or right. You can also change the “range of influence” which is another way of asking “How many players will be affected by Wrath of God?”
Download Site - You want to download the "bundle" which has both the client and server.
To download the card images and mana symbols, click on the buttons “Images” and “Symbols” in the upper right corner.
--Mage is another fine project that uses Java.
--Thanks to the Mage developers and supporters: