Gaea's Liege
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As long as Gaea's Liege isn't attacking, its power and toughness are each equal to the number of Forests you control. As long as Gaea's Liege is attacking, its power and toughness are each equal to the number of Forests defending player controls.
: Target land becomes a Forest until this creature leaves the battlefield.
Jodie Muir
Rulings
Will not add or remove the supertype snow to or from a land.
(wotc • 2006-10-15)
The activated ability doesn't affect whether the land is basic or not. It overwrites any other land types. Being a Forest gives the affected land the ability "{T}: Add {G}."
(wotc • 2006-09-25)
When being declared as an attacker, use the "not attacking" power and toughness. It only changes after declaration is complete.
(wotc • 2004-10-04)
Rulings
Will not add or remove the supertype snow to or from a land.
(wotc • 2006-10-15)
The activated ability doesn't affect whether the land is basic or not. It overwrites any other land types. Being a Forest gives the affected land the ability "{T}: Add {G}."
(wotc • 2006-09-25)
When being declared as an attacker, use the "not attacking" power and toughness. It only changes after declaration is complete.
(wotc • 2004-10-04)