Emeritus of Truce The rate of a 3/3 and a flying 1/1 for 3 mana is good enough for Standard, but Im really interested in Emeritus of Truce for Commander, where youll frequently be able to give yourself the 1/1 and prepare the Swords to Plowshares

higher rarities will start to mix and match effects): Artifact destruction Artifact or enchantment destruction (Naturalize) "Bounce" (Returning nonland permanents to owner's hand) Card drawing Card filtering Creature destruction Creature lockdown (Pacifism and Dehydration) Creature regrowing (Raise Dead) Creature unblockability Counterspell Damage prevention (Fog) Direct damage Discard Draining creatures and/or players Enchantment destruction Fighting "Flickering" (exile and return a creature to the battlefield) Flier destruction Forced blocking Forced sacrifice "Impulsive draw" (exile a card or cards, can cast until end of turn) Land fetching Life gain Looting/rummaging (drawing and discarding, and vice versa) "Milling" (putting cards from top of library into graveyard) "Panic" (some number of creatures can't block) Power/toughness pumping (Giant Growth) Tapping creatures (including "freezing" them, where they don't untap) Temporary stealing (Threaten) Token making Uncommon Complexity Uncommon gets to raise the bar a little on comprehension complexity and a bit more on board complexity

That can be done with cards like Spark Double, or the passive ability of Nicol Bolas, Dragon-God
You can also check websites like eBay to see what has sold recently, and at what prices
Too-Specific Top 10 - Are You Okay, Allies
Its rarity stems from a low pull ratea key factor in driving up the value, making it a hot commodity in the increasingly popular Evolving Skies set within the Sword & Shield series