pokemon sword and shield rebel clash booster box & Pack Meet more than a dozen powerful new Pokémon V Pokémon TCG: Sword & Shield—Rebel

Essentially, the synergy from keeping a weaker set of two cards needs to overcome the raw power of keeping the two "best" cards to make this the correct thing to do

And when its night, any permanent card that any player owns that has a nightbound keyword on it, much like Tovolar above does, will come in on their night side

In the same way that you can't cast a spell if you can't get the proper mana, mana is also a limiting factor when it comes to deck building

Section 28 Summary Input: One playing of King Crab Output: Lots of reuse of Skyshroud Poacher Layer count: For each Bloodbond March, for each Clash of Realities on a new Mimic Vat, for each Guilty Conscience on Mimic Vat, for each Rite of Passage putting counters on Mimic Vat, for each Doubling Season on the Rite of Passage counters added to Mimic Vat, for each Rings of Brighthearth on Sinking Feeling's ability while it's attached to Mimic Vat, for each Rings of Brighthearth on Mimic Vat's ability, for each Clash of Realities on King Crab, for each Guilty Conscience on King Crab, for each Rite of Passage putting counters on King Crab, for each Doubling Season on the Rite of Passage counters added to King Crab, for each Rings of Brighthearth on Sinking Feeling's ability while it's attached to King Crab, for each Rings of Brighthearth on King Crab's ability, for each Grip of Chaos, for each Psychic Battle...15

You lose out on the spell if you use these to make an early land drop, but that just puts them on par with MDFCs