Interestingly, one Domain Overlords list ran both Starting Town and Ultima, illustrating how different support tools from the set can converge in a single build
// Sephiroth, One-Winged Angel Legendary Creature Angel Nightmare Avatar 5/5 Flying Super Nova As this creature transforms into Sephiroth, One-Winged Angel, you get an emblem with "Whenever a creature dies, target opponent loses 1 life and you gain 1 life." Whenever Sephiroth attacks, you may sacrifice any number of other creatures
He lives on the -1 ability
You can't go wrong with any of them
There are tons of Slivers out there that work very well without any help
The draft environment is all about playing to the board, so you need to prioritize good creatures and better removal