Any character that takes refuge within this fortified fortress becomes basically untouchable, with only evasive characters able to damage them at all until your opponent brings down those walls
While putting three stun counters on one of our creatures probably sounds bad, since our deck is so good at bouncing our own creatures back to our hand, odds are we'll use Dreamdew Entrancer to tap down something like Pond Prophet and then use Mistbreath Elder or Clement, the Worrywort to bounce it back to our hand anyway and get around the stunning
Casting an exiled card causes it to leave exile
Rageblood Shaman is a solid three-mana lord, not only offering +1/+1 to our team but also trample to get through annoying blockers
Its not the friendliest deck idea in the world, but it can be a lot of fun to play, as well as a fun puzzle to try and fight against
It doesn't copy whether that permanent is tapped or untapped, whether that permanent has any counters on it or any Auras and/or Equipment attached to it, and it doesn't copy any non-copy effects that have changed that permanent's power, toughness, types, color, abilities, or so on