As for 4-cost Rebecca , shes a value Blocker, allowing you to add 1 Black Character with a cost of 3 to 7 other than [ Rebecca ] from your trash to your hand, and then you can play 1 Black Character with a cost of 3 or less from your hand, rested
Special Japanese sets, such as VSTAR Universe, guarantee at least one hit per box, offering a more rewarding opening experience
Transforming it normally is probably too slow, so Id recommend trying to flip it manually, like with Tovolar, Dire Overlord
For example, superfriends decks get to activate their planeswalkers and bring them closer to ulting, a shrine deck gets those juicy upkeep triggers, and so on
There are scads of ways to kill, steal, shuffle, or exile it