In Alchemy, it may even prove to be pretty effective, thanks to Seek effects
There are a number of ways to deal with mobilize decks, which are powerful, but not among the strongest strategies in any format
I think in Commander this may be something where if you have a big enough X to matter you should just be winning the game with something better
Master of Ceremonies Master of Ceremonies is a similar multi-purpose white card, though it's symmetrical, both you and your opponents will get the effect
Getting a couple of plains out when this rabbit mercenary comes down is nice, then youve still got a solid body to go along with it
The other top MDFCs are there mainly for their potential to lead a Commander deck rather than be used in the 99