If youre able to open the door to Warped Space, you get an incredibly powerful effect, letting you pay zero mana for a single spell you cast from exile each turn
For example, a card that destroys all red creatures is normally of limited use because you dont know what colour(s) your opponent is playing beforehand and it is only valuable in a metagame where many players run red cards
Herald of Eternal Dawn can be a nice surprise threat, especially against red aggro and creature aggro in general, as these decks regularly lack the means to get rid of a 6/6
You cant remove more than one +1/+1 counter from Noosegraf Mob at once to get more Zombie tokens, and you cant choose not to remove a counter
A powerful card, but gated somewhat by needing quite a bit of setup
The next part is that they arent full board wipe