Successful blink decks have existed in Modern before, thanks largely to Soulherder
The worst part of these cards is that normally, you need to cast them and later profit, but youre getting both effects right away here
As someone who plays consistently on webcam, they pop gorgeously
Brawl Not Legal Vintage Legal Timeless Not Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Not Legal Toolbox Buy This Card Notes and Rules Information for Strong Back: Strong Backs abilities reduce only the amount of generic mana in equip abilities that target the enchanted creature and in the total cost of Aura spells that target the enchanted creature
SOTHERA, THE SUPERVOID This seems specifically good against itself, and I can dig that
In order to use these abilities, you need to spend turns adding counters to Domri, so you can use the card to its full potential