Youre locked into red creatures and artifacts so no Eldrazi cheating here
The decks definitely have a sense of flavor over function even though theyre functionally well crafted, their flavor shines a lot since theyre set-themed
Slickshot Show-Off's ability, when mixed with burn spells, can do giant outbursts of damage, so much that it's not uncommon to do double digits of damage with one attack
For players who frequent the same playgroups with the same decks week after week, introducing lock cards which target only one deck at the table will inevitably be taken as personal, even if just within the politics of threat assessment. Sleeving up these sorts of cards can feel like the start of a spiteful arms race, where players without the resources to change commanders regularly are sitting ducks against spells never balanced for main-decking against known opposition
Even still, this card can draw A LOT of cards very quickly, and it makes sense why it would get the axe