Players tend to refer to the ink colors by their primary color blue, red, yellow, purple, green except for steel, which is just called steel
Bagheera Guardian Jaguars ability is what makes him stand out as a Bodyguard, when banished during your opponents turn, Bagheera Guardian Jaguar will deal 2 damage to each opposing Character
Glen Elendra Archmage will help you with that, not once, but twice (or more if you want to go down the Melira, Sylvok Outcast route)
Again, it's not card advantage in and of itself (since you draw three, and then discard three + lose the Coliseum), but it combines famously with Deep Analysis and madness cards (such as Circular Logic), and its effect can't be counterspelled
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