You can cast another spell before any player can attempt to remove Omniscience with spells or abilities
The downside of this eldrazi commander is that, unlike its older version, it has no way to defend itself, and there are plenty of colored eldrazi that would be a great fit here but you cant play due to the color identity

by RedbeardTjeerd Set 12 Core Shark Trading Card Genies Win-a-Case Tournament @Trading Card Genie 54 Players $69.01 54% 2026-07-11 Top64 4-3-0 Sapphire Ruby by Jeff - Additional Ink Set 12 Core Shark Disney Lorcana CCQ - Round 10 Standings (Top 4) @Sharp Gaming 210 Players $69.20 54% 2026-07-11 Top32 6-0-1 Miracoli Roguerino by Nimble_Owl_1618 Set 12 Core Shark Disney Lorcana CCQ - Round 10 Standings (Top 4) @Sharp Gaming 210 Players $71.89 55% 2026-07-11 Top16 2-3-0 INKWELL NAVIGATORS - II Expedio - Versus Gamecenter J by [ANV] JoaoCosta Set 12 Core Supers INKWELL NAVIGATORS - II Expedio - VS @Inkwell Navigators 23 Players $92.97 78% 2026-07-11 Rank Name date Top8 Set 13 Core Evasive smackers by Dabawookie A/E Toys Lorcana CCQ @Warehouse 51 games 99 players $424.64 18-Jul 61% spiciness Top8 1-2-0 Set 12 Poorcana Ruby/Emerald Evasives by Heriberto Poorcana Floripa @CCG Floripa 12 players $6.45 15-Jul 95% spiciness Top256 2-4-0 Set 12 Core Sapphire Ruby by No.One_Boofasa R/B Shark Disney Lorcana CCQ - Round 10 Standings (Top 4) @Sharp Gaming 210 players $71.08 11-Jul 54% spiciness Top8 8-1-1 Set 12 Core God of War CCQ Winner by James Gray II P/R Evasive Disney Lorcana CCQ - Round 10 Standings (Top 4) @Sharp Gaming 210 players $504.87 11-Jul 63% spiciness Top128 2-4-0 Set 12 Core Fun times by Lykoss14 P/R Evasive Disney Lorcana CCQ - Round 10 Standings (Top 4) @Sharp Gaming 210 players $425.83 11-Jul 65% spiciness 2nd 5-1-2 Set 12 Core Ready Set Action by Pengoyn R/B Shark INKWELL NAVIGATORS - II Expedio - VS @Inkwell Navigators 23 players $66.80 11-Jul 48% spiciness Top32 3-3-0 Set 12 Core Ready Set Action

Skyfire Phoenix I really want to like Skyfire Phoenix
Spider-Man is also back in stock at the moment, with a few sets still up for grabs
It may seem odd that this is higher than some of the other choices that can also come in untapped and generate those two colors, but the main benefit here is that this pain land can come in on turn 1 and generate either color without the help of another mana source