What I'm saying this is obviously a non-issue thats being used as a scapegoat, even more so then other cards on the list
We'll often see two-mana lords and three-mana enchantments with upside, so I'm going to say this effect is around 2.5 mana
You can also include any of the easy two-card combos like Dark Depths + Thespian Stage (+ Expedition Map, Elvish Reclaimer, and Crop Rotation), Survival of the Fittest + Recurring Nightmare, or Strip Mine + Crucible of the Worlds, Wrenn and Six, Ramunap Excavator, or Icetill Explorer (+Crop Rotation, Elvish Reclaimer, Green Suns Zenith)
From the scaling potential of the Vivid mechanic to the high-stakes resource management of Blight, theres a lot to wrap your head around whether youre brewing for Standard or looking for that next commander engine