I play The Necrobloom as my Gate commander
Koma, Cosmos Serpent Koma, Cosmos Serpent stands out as a uncounterable commander with a bunch of decks, but few themes jump out, at least based on how EDHREC compiled their analytics
Theres a little bit of Item lock with Cryogonal, but its used mostly to slow down the opponent on turn 1, not to lock them out of the game
When youre ready to assemble it, the AI deck builder and deck analyzer will get you from idea to a legal, optimized list in minutes
The Support keyword allows that character to lend their strength to another, increasing your overall damage output for the turn
Zatu blog will be a good source of information on this topic as well as the official Disney Lorcana website at