Sorry, time to turn off the NES and leave the cabin
The question will ultimately be if you can consistently generate enough value fast enough to warrant Vivi

$19.99 Winota, Joiner of Forces (0019 - Bartz Klauser) Final Fantasy Through the Ages $249.99 Deflecting Swat (Borderless) Commander Masters Variants $16.99 Muldrotha, the Gravetide (0057 - Orphan, Cocoon fal'Cie) Final Fantasy Through the Ages $34.99 Jodah, the Unifier (0017 - Warrior of Light) Final Fantasy Through the Ages $24.99 Cecil, Dark Knight (0525 - Borderless Surge Foil) Final Fantasy Variants $22.99 Cryptic Command (0029 - To the Crystal Tower) Final Fantasy Through the Ages $32.99 Sram, Senior Edificer (0003 - Firion, Swordmaster) Final Fantasy Through the Ages $10.99 Bruse Tarl, Boorish Herder (0050 - Hugo Kupka) Final Fantasy Through the Ages $94.99 Smothering Tithe (Borderless) Commander Masters Variants $2.99 Fatal Push (0009 - Battle at the Big Bridge) Final Fantasy Through the Ages $11.99 Mangara, the Diplomat (0025 - Minwu, Rebellion Strategist) Final Fantasy Through the Ages $79.99 Tymna the Weaver (0018 - Cecil Harvey) Final Fantasy Through the Ages 0 results found

Final Fantasy summons were clearly made to work with Yuna, Grand Summoner, and you can see the difference spelled out: Yuna places +1/+1 counters on creatures as they enter, but when they die she just cares about any type of counters