If you have a favoured, physical deck youd like to take for a test run against players all over the world, importing it into MTG Arena is a great way to do it
(If a monster with an A-Counter battles an "Alien" monster, it loses 300 ATK and DEF for each A-Counter during damage calculation only.) Alien Warrior X EARTH Level 4 [ Reptile / Effect ] ATK 1800 DEF 1000 When this card is destroyed by battle and sent to the Graveyard, place 2 A-Counters on the monster that destroyed it
You cant really navigate the other join forces cards in such a way that doesnt benefit the player with the best position at the table
Additionally, to maximize Carnosaur, both decks have to fill the remaining non-Land slots with cards that cost six or more mana, ensuring that Carnosaurs Discover 5 ability will hit combo pieces
This seems too win-moreish to actually be good, but flashy effects like this are fun in Commander
Decks With This Card Recent public and tournament decks using Cerulean Sacred Phoenix of Nephthys