Unfortunately, Scions & Spellcraft is one of the most unfocused precons in the set, and as a result, it could do with a good bit of chopping and changing
However, both of these new effects are also Lessons, which could be a strict upgrade for a few decks out there
Stick to a mix that focuses on the two-, three-, four-, and five-casting-cost creatures
Whats even more amazing is how efficient every part of the card ends up being, to the point that the biggest weakness on Shigeki is a lack of haste
Of course, Lorcana is relatively new as far as TCGs go, and the enticing power of a Disney IP has many folks new to the hobby looking to pick it up
We also have a separate guide to the MTG Commander banlist, if that's the only format you're interested in