Realm of Light is a field spell, and heres what you get with it: Every time a card is sent from your deck to the graveyard, you can place a shine counter on this card
with some extra-special (and expensive!) commemorative releases
A key point here is that were not discussing every single structure deck in Yu-Gi-Oh Master Duel, but are discussing the upper echelon of Master Duel structure decks
So: -King Feral -Exciton -Rise (only good via the RUM, only vs
I would also recommand you to change the evenly matched for lightning storm if you can afford it, but I can't so I have to play some "budget" option instead, that doesn't really synergise with the deck and make you loose your deck advantage by making you loose your battle phase
Once time is called, the match ends at whatever phase the game is in, and the player who has more life points at this point is the winner