If youre confused, you arent alone
Deck Management Magic Online automatically saves your deck on our servers (and not your local computer) when you leave the Collection scene or switch to a different deck
There are also marketplaces that fall into an in-between category not being fully public or private
When you draft a deck or build something for Standard, how much mana things cost is important
P/T Number 328 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (2/18/2022) Isshin, Two Heavens as One's ability affects only triggered abilities with conditions that are directly related to attacking, such as "whenever [this creature] attacks" or "whenever you attack with one or more creatures." It does not affect triggered abilities with other trigger conditions, such as "whenever [this creature] becomes tapped." (2/18/2022) Isshin's effect doesn't copy the triggered ability
The deck was able to stall out until they could play huge bodies and defeat you in one turn while maintaining card advantage
