With an optimised deck or two, I hurl myself eagerly back into the Arena, where Im reasonably pleased with how well (and how quickly) I get matched with other opponents
If gets a lot better if you can make a lot of mana, though
It can go dead in the late game, but its much less likely to than something like Spell Pierce because, with four players, you regularly get turns with very high storm counts, especially when someones trying to win
Keep in mind that it doesnt double all your abilities
The second ability is Warrior-specific, but it triggers for each Warrior that connects in combat, and the draw ability is completely optional, so you can opt out if you're low on life or close to milling out
Lord Xander, the Collector: Xander is probably one of the first Grixis commanders to appeal to me