Tajic is an incredibly good card, but it looks like some of the decks at the top of the expected week one metagame are built to deal with it efficiently
Edge of Eternity Key Dates Scheduled Events Prerelease : July 2531 Unlimited scheduling within the one-week Prerelease window Commander Box League : July 2531 Unlimited scheduling within the one-week Prerelease window Commander promo: Palladium Myr Two-Headed Giant Commander Night : August 1September 18 One event monthly Commander promo: Palladium Myr Commander Party : August 1521 and September 511 One event per period
Spider-Man, Peter Parker, Archangel of Thune, Light of Promise, Cleric Class, and Sunbond also go infinite with Casey Jones once you have Lifelink
It ramps, color fixes, and draws cards, what more could you ask
Baral brings discipline and control to your game, reducing your spell costs and turning every counterspell into a card advantage engine