You can't choose "multicolor," "gold," or "colorless." If there is somehow no chosen color, Heraldic Banner's static ability has no effect, and its mana ability produces no mana if you activate it
Note that's all counters, so the trample counter from Titanoth Rex or deathtouch one from Void Beckoner that want to be cycled, and both are nasty together
Make your cards impossible to ignore
Secondly we have a fantastic Zoro vanilla card with a really useful trigger that could appear in life exactly when you need it
(2024-11-08) If you gain an amount of life "for each" of something or "equal to the number" of something, that life is gained as one event and the last ability of Drogskol Reaver triggers only once
The best way to approach these decks is to kill their early threats and mill them as fast as you can by playing around counters as much as you can