Getting to tap down your opponents team is a nice effect to have, but not one worth playing without wanting the other mode
Many staples have already had reprints, such as Farewell, but I think the Legendary Lands from Neon Dynasty are strong contenders to start ticking upwards for a while, now that they are no longer Standard legal
"Harnessed" is a designation that the permanent has once an ability instructs you to harness it
While some are serious threats, others are pure chaos, but all of them offer something unique to build around
What I found as I dug into the market was a niche of card collecting that had a number of ways in which you could build a traditional "top 20" styled list and there was a lot to consider in refining a list
If Wrenn and One is changed into a basic land type, it continues to be a green Wrenn planeswalker, but it will lose its other abilities