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This increases the effectiveness of your discard because games tend to be a lot shorter, which means your opponent has fewer draw steps to mitigate all the hard work Inquisition of Kozilek and Thoughtseize have done

Talrand, Sky Summoner is just that commander, giving you a 2/2 Drake token with flying every time you cast an instant or sorcery spell

And what are the best ways to support them

Fury will shoot creatures and planeswalkers for 4 damage divided as you choose, which is pretty good for just one more mana than Flametongue Kavu since you can target planeswalkers, get double strike, and can split targets to take out more than one opposing card