Coconut is a Lorcana format built around one legendary character. Pick yours and the site builds around it with you.
Open it →One legendary card is your Coconut. Three inks, singleton — one copy of everything else — and sixty cards.
Your Coconut can be played from outside the deck, so it is the one card you always have.
Guided walks you through it: pick a Coconut, see the filters that suit it, build with the rules enforced as you go.
Or open a prebuilt deck for any Coconut, read why each card is in there and what your first three turns look like, then copy it and make it yours.