We have many options for both and you dont need anything else in this format
Gisela, the Broken Blade Gisela, the Broken Blade is a fine creature by itself and a good card to have beside Bruna, the Fading Light
Problem is that even if youre at 40+ life, the moment you cast Felidar Sovereign, other players will try their best to attack you or kill your win condition, making this a little more balanced
LOCH Six new forms of the Yu-Gi-Oh
(2) If you control a Link Monster, your opponent cannot target your monsters for an attack, or for a card effect, except this one
I have a couple other new choices in the deck that are typically foreign to Frog Monarchs: Kuribandit, Chaos Sorcerer and Pot of Dichotomy