Play Boosters are the ideal choice for exploring the set and playing Limited Format events
Granted, this path and the ones involving tokens lean a lot more in the combo direction than the mana acceleration direction, but its definitely worth noting Carnival of Souls capability of being useful outside unreliable 3-4 card loops in these strategies, as it gets a bad rap Im not convinced it fully deserves when reading about its capabilities elsewhere
Unfortunately, most bosses and strong enemies are immune to its effects, making this spell rarely useful
This mechanic was represented in the card Galuf's Final Act (which does depict one of the best moments of the game), but that's the extent of the representation of the two
Eerie Ultimatum Heres one amazing Abzan card, Eerie Ultimatum
Thats nice and all, but the real charm to this battle lies in its consequence: the Pyre of the World Tree