Improvements + Cards To Drop With Sapphire youll find a good amount of options for items and ramping ink
The crucial thing to remember about the spell-cheating element of Buster Swords trigger is the mana value limit is dictated by combat damage dealt to a player, not their creatures
With the right build, you draw enough fast mana, tutors, and protection to assemble a deterministic win immediately
Shared Animosity is also in the list, but I leaned away from cards like Beastmaster Ascension simply because this is a Frogs deck, not a Beasts deck
Marauder / Executioner are better when your deck cares about creatures and/or wants to sacrifice things for value, like Meren of Clan Nel Toth decks
And dealing eight damage divided any way you choose is basically a one-sided wrath