Theres no number you can put on testing, but I personally test a deck 40+ times before locking it in
Banner of Kinship Banner of Kinship is the second coming of Coat of Arms no, just kidding
That said, Kalemne, Disciple of Iroas is getting a lot of attention right now because it fits like a glove in the Kratos, Stoic Father and Atreus, Impulsive Son Partner Commander deck
Retrieved September 20, 2017
To tell if a Magic: The Gathering card is rare, look at the set symbol located on the bottom right of the card: a gold colored symbol indicates a rare card, while black is common, silver is uncommon, and orange is mythic rare