ik ben benieuwd hoe deze het in mn Muldrotha, the Gravetide deck gaat doen! ik denk dat dat nog wellis gevaarlijk kan gaan worden

Sowieso een commander staple in the make.

The thing that makes Wayfarer's Bauble a good card, is that you can play it on turn 1 and crack it on turn 2, leaving you with 4 mana on turn 3, just like a Rampant Growth would. Moonsilver Key is considerably slower and doesn't actually ramp you (land goes to your hand instead of to the battlefield) but fills a different niche, namely looking for Sol Rings and Krark-Clan Ironworks for example. Good card, but not really comparable to Wayfarer's Bauble. I'd rather compare it to something like Fabricate

This is actually a really budget version of wayfarers bauble, a little slower but still good especially the artifact part