In the early game it's just a five-mana Damnation, and in the mid-game it's an okay sweeper with a few dorks, later you can play around it and really push the board your direction
Additionally, for objects on the stack (that is, spells or effects that have not yet resolved), copies also copy any choices made while casting it, such as mode, targets, or additional or alternate costs that were paid
If the sacrificed creature was a Hamster, draw X cards
Call upon legendary team-ups, wage fierce battles that transform when won, and assemble 16 different world-spanning frame treatments
There are some things I find a bit odd, like Time Wipe even if it does allow for some Offspring casts, but overall I like the deck and the new cards are pretty good