All the nonbasic lands either provide multiple colors, like Arcane SanctumArcane Sanctum and Command TowerCommand Tower, or search for whatever color you need via Evolving WildsEvolving Wilds for basics and GrasslandsGrasslands for those with Basic Land Types like Cinder GladeCinder Glade
For better or worse, this isnt the first time that weve seen a Secret Lair card spike like this
Cycling 2 (2, Discard this card: Draw a card.) Company: Wizards of the Coast Series: Amonkhet Item Type: Single Card Brand: Magic The Gathering Release Date: April 28, 2017 UPC: Stock #: 159199 Our Guarantees to You, Our Valued Customer
SE Secret Rare Guardian of the Golden Land X TRAP Continuous Special Summon this card as a Normal Monster (Zombie/LIGHT/Level 8/ATK 800/DEF 2500) (this card is also still a Trap), then, if you control "Eldlich the Golden Lord", you can make the ATK of 1 face-up monster on the field become 0
It disappears after the Destiny Draw is performed