When considering new mechanics for older formats, I look for hidden interactions which might stand out in these larger card pools
Modern Horizons III did some good to the bestow ability and brought in more cards that care about modified creatures as another avenue to give this strategy some legs
In pauper, there are similar things to Sleight of Hand already, and with paper printings for this card starting at around $5.00 (US) and going all the way up to $10, I feel for the paper pauper player there are enough options that this card won't be necessary for a deck very often
Number 7 This card will not be good in a Creatureless deck
Too many Krark players take far too long with their die rolls and coin flips
You can, however, pay additional costs, such as kicker