Monumental Henge
Land
This land enters tapped unless you control a Plains.
: Add 
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: Look at the top five cards of your library. You may reveal a historic card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
Steven Belledin
Modern Horizons 3 (MH3)
• #222Rulings
You must already control a Plains as Monumental Henge enters the battlefield for it to enter untapped. If it enters the battlefield at the same time as a Plains when you control no other Plains, it will enter tapped.
(wotc • 2024-06-07)
Rulings
You must already control a Plains as Monumental Henge enters the battlefield for it to enter untapped. If it enters the battlefield at the same time as a Plains when you control no other Plains, it will enter tapped.
(wotc • 2024-06-07)