The new Kakuna is neat too, with an attack that can paralyze the opponent's Active Pokmon, stopping them from making an attack, and forcing them to face Beedrill's giant stinger on the following turn
And this is combined, for example, with healing cards, usually with heavy Pokmon that depend on 4 basic energies or more, like Charizard VMAX DAA 20, or those Pokmon that use special energies like Mewtwo & Mew-GX UNM 71 to replace them using the Scramble Switch , using healing cards like Acerola BUS 112, without losing those energies
Additionally, since theyre square corner cards, and not normal cards, its not something that just anyone could make, even if they had a huge expensive printing press
Life wise you are better off with the two drop kill but if you have lots of two drops in your deck then the one drop kill is well worth that extra cost
Osgir represents a trend in Commander, which is Wizards reaching out to people like Sheldon Menery for help designing Boros cards that dont suck
As mentioned above, if you wanted to play the card Aeromunculus, for example, you'd need to include islands and forests in your deck to give you a good chance of having access to both colors throughout the game