Ive recently dived into playing some EDH on Magic: Online, and the experience there is that games are over a whole turn or two faster than they would be in your LGS
I remember when Hydras Growth got printed, the lack of trample got mentioned in my LGS during prerelease as being weird, until someone had a Moss Viper with 128 counters on it because their opponent didnt draw into removal
Legendary Creature - Cleric Cat Color tag templates(None) King of the Pride Other Cats you control get +2/+1
Especially if you frequently buy, sell, or trade trading cards
Remember that life loss doublers also fit in this category
The best part about this package is that you can tap Mox Opal for U, activate Master Transmuter (bouncing Mox Opal to hand), and re-cast the Mox Opal, untapping the Master Transmuter and all your other artifacts