All these options work well with Kess
You can load them up with counters, double those counters with things like Vorinclex, Monstrous Raider, slap on some equipment like Sword of Fire and Ice, or enchant your unblockable creatures with Eldrazi Conscription and the like
However, these myths have been debunked, as the cards contained within a pack aren't determined until after the player selects one, meaning there is no advantage to selecting certain packs over others when choosing from the carousel
Salamangreat is one of the most popular tournament-level strategies of the last decade, able to dish out 8000 damage in a flash
Due to how clean Fiery Confluence is whenever you are expecting it, your life total somewhat starts at 14
Emerald gets some of the very best of these offerings, making it well worth consideration in the new metagame