can you use proxy cards in tournaments mtg Tournament Info | Lucky Top Deck MTG Proxy Formats: 3 Formats

The only limit to those three black mana symbols is that they have to be used to cast a vampire, cleric, or demon

Land Color tag templates(None) Land (CTRL to add secondary) Arcane Signet : Add one mana of any color in your commander's color identity

I'm not sure if it has a place in Standard, but in Commander I could see some major combo potential

You want to hit them and double the rest of your damage for the turn, which can come from burn spells or from non first strike creatures that attacked alongside Lightning

I dont mind waiting longer to get a steep discount, but thats a personal choice

That means you wont be able to apply the new card style to every version of cards that have multiple different arts, like the guild gates from Guilds of Ravnica and Ravnica Allegiance