one piece card game eb-01 BANDAI Extra Booster Memorial Collection EB- 01 (Box) Pack of 24 : Toys & Games One Piece TCG: Memorial Collection

You can mulligan that is, swap out any number of cards completely free the first round

And for the low cost of one mana, Exploration will also allow you to cast an extra land every turn

Granted, the overall historical momentum has been for it to keep moving earlier (understandable since the Summer slot came into existence, and then later into prominence), but clearly WotC is at liberty move the Spring set around at will

It has quickly earned a reputation as a staple of competitive Standard, and even sees play in Pioneer, Modern, and Vintage

Its listed on the contents, but not even mentioned in the rules included in the box (theres a few oversights in the rules sheet