Cosi's Trickster You can definitely see a world where a turn-1 Cosi's Trickster becomes a huge threat, but that's all it'll ever be, and the failcase is a 1-mana 1/1
I agreed to give her fifty pounds for them, not knowing exactly what was inside her collection, or whether they were even real
I also dislike the way this card is unbalanced by the difference in deck sizes and considered changing the requirement to 13 cards or something similar but that would be awkward, ugly and just make the card way too niche in application so I might as well just play it as it is or not at all
Its already commanding premium prices on the resale market, and its value is backed by strong fundamentalslegendary status, visual impact, and rarity
I am not sure if I will ever get the stage where I do content on it however as it seems like it would just be incomplete commander content and not all that useful to anyone
The actual effect of the card isn't anything special (see: Sokka, Tenacious Tactician), it's really just a matter of whether rulebreaker truly breaks the card or not