Anthems are good when you have lots of creatures and the incidental damage this can chip in can really turn up the heat on your opponent
I can imagine a world where the format is slow and chaining these into each other is a recipe for success
The second Curse will give the one attacking the Cursed player a tapped 2/2 Zombie token - so close
They can, unlike Ghostly Prison effects, but they might not want to give you a card and split attacks at others
For example, a ramp or control core, both of which are good at getting to a spot in the game where you can cast your pricy spells
You can pick up your card for next turn, cast the Tiger, and likely find a spell in the next two cards to keep pressure onand if you keep the Archangel, seeing two lands is still fine