Because these attacks are so powerful but so limited in use, GX attacks are all about timing
I know that the lands entering the battlefield tapped follows suit with the similar cards printed lately, but for six mana Id like to see an exception this time for them entering untapped, especially with how well it would be flavor-wise to cast a Nissa, Vastwood Seer with those three untapped Forests
Argivian Archaeologist was the first Archaeologist creature type to enter the game, but in subsequent updates, its creature typing became Artificer
Wight of the Reliquary Sac a creature, get a land is a nice ability on a 2-drop, especially one thatll sometimes attack as a 10/10
While not as fierce, Milotic has a similar appeal as Gyarados in the whole uggly-duckling-turned-attractive-Pokemon way