The artwork by Bayard Wu brings to life the literal devastation this card can bring to the battlefield when your opponents least expect it
In short, to be considering Radagast, you need to be a very diverse, creature-heavy deck
Note that this effect doesn't have a duration and will last until the creature leaves the battlefield
The site also shows you data to help you price your cards competitively, showing you what how much a card recently sold for and its current market value, all sorted by the condition the card is in
If you dont, you are basically sacrificing your own creatures for a trade-off or, well, you are not killing anything
Considering this trend, it is likely that Hiram and Fortisphere were also going to be rotated out anyway thus the ban introduced during last set just came a few months early