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.Razorverge Thicket is at its best when the first few turns need to be efficient. It supplies green or white and enters untapped if you control two or fewer other lands. That lets a green-white deck cast an early mana creature, a protection spell, or a small engine without spending life or accepting a tapped land during the opening sequence.
A hand containing a green one-drop and a white follow-up is a good example of what it supports. The Thicket can provide either requirement, leaving other lands available to fill the remaining color. If your hand also contains a basic land that will remain untapped later, playing the Thicket first may avoid its drawback on a future turn when you already control three lands.
That benefit comes with two limitations. It has no Forest or Plains subtype, so fetch lands and effects that search for those land types cannot find it. It also usually enters tapped once your mana base is established, which matters when a late land needs to fund interaction immediately. The condition counts other lands currently under your control rather than the turn number, so ramp and land loss can change the result. Favor the Thicket in decks where early colored access matters more than late untapped entries or searchable land types, especially low-curve creature and token strategies that want to start developing immediately.
