Ill only be talking about mono or dual mana decks, so your basic mana options here are as follows
Additionally, these players are frustrated by yet another drain on the expensive and hard-to-obtain wildcards that Arena uses in lieu of dusting systems seen in similar digital titles such as Hearthstone
Outside of Commander, Bitterbloom Bearer also seems like a slam-dunk addition to Dimir Midrange in Standard
Siege Rhino, Anafenza, the Foremost, and Dragons like Dragonlord Ojutai and Thunderbreak Regent all fell to the two-mana instant
In either case, you can also intentionally discard or sacrifice an expensive and powerful creature only to return it to the battlefield from your graveyard
You can buy individual packs, or a full booster box with 24 packs this is generally the best value if you have the cash