[2] Dont worry about your commander being underpowered. Most commander players build decks they think are neat or interesting to play, not hyper-competitive
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I mean, usually not in Commander, but Tinybones, Trinket Thief can get the job done when you can stack on card draw and get some late game inevitability
Outside of a few notable exceptions, Faeries are primarily Dimir (blue/black) which makes choosing somewhat simpler
It can be played both defensively and offensively in Mono-Green, helping to compliment the main win-conditions of combat for Mono-Green Commander decks
Wizards makes much of its packaging recyclable