Its not Standard-legal though, because the Lord of the Rings collection was designed to be played only in Eternal formats like Modern, Legacy, and EDH
In the tabletop version, there are distinct phases: Draw, Standby, Main Phase, Battle Phase, Main Phase 2, and End Phase
Its effect text, when translated to English (thanks, Bulbapedia), reads: We certify that your illustration is an excellent entry in the Pokmon Card Game Illust Contest
In fact, its text is exactly the same as before because everything on Creature Swap happens when the effect resolves: Each player chooses 1 monster they control and switches control of those monsters with each other
Mega Charizard EX #125 from Mega Evolutions set Phantasmal Flames
The top decks in the game are never the top decks for very long