This is because whenever a land enters the battlefield under your control, each of your creatures are untapped and you gain an additional combat step
Froakie/Frogadier Froakie and Frogadier form a triptych with Greninja, but honestly I think the cards look great without the SIR version
Scout Unit 6.0%inclusion 5%synergy 263 decks 4.41K decks Instants An Offer You Can't Refuse 46%inclusion 9%synergy 2.14K decks 4.63K decks Chaos Warp 40%inclusion -1%synergy 1.88K decks 4.63K decks Arcane Denial 35%inclusion 6%synergy 1.62K decks 4.63K decks Deflecting Swat 30%inclusion 10%synergy 1.40K decks 4.63K decks Swan Song 30%inclusion 8%synergy 1.37K decks 4.63K decks Negate 28%inclusion -4%synergy 1.28K decks 4.63K decks I Am Iron Man 25%inclusion 22%synergy 1.09K decks 4.41K decks Galvanic Blast 24%inclusion 22%synergy 1.12K decks 4.63K decks Desynchronization 23%inclusion 21%synergy 1.06K decks 4.63K decks Pongify 22%inclusion -5%synergy 1.04K decks 4.63K decks Mana Drain 22%inclusion 5%synergy 1.01K decks 4.63K decks Scour for Scrap 20%inclusion 17%synergy 922 decks 4.63K decks Sink into Stupor 17%inclusion -1%synergy 766 decks 4.63K decks Thirst for Knowledge 16%inclusion 14%synergy 760 decks 4.63K decks Brainstorm 14%inclusion -28%synergy 669 decks 4.63K decks Whir of Invention 13%inclusion 10%synergy 612 decks 4.63K decks Rapid Hybridization 13%inclusion -4%synergy 607 decks 4.63K decks Untimely Malfunction 13%inclusion 5%synergy 583 decks 4.63K decks Big Score 10%inclusion -15%synergy 477 decks 4.63K decks Redirect Lightning 10%inclusion 3%synergy 449 decks 4.63K decks Reality Shift 10%inclusion -4%synergy 448 decks 4.63K decks We Say Thee Nay
Fighting against the very idea of Secret Lair drops and crossover products is a losing battle
If you want to build a new Dragon-themed Commander deck (and after this set, you will want to), these are the basic lands to pick up
It is coming down no matter what thanks to it being unable to be countered, giving you a solid 7/6 creature for your opponents to contend with
