Gyruda, Doom of Depths As far as companions go, Gyruda, Doom of Depths is one of the fairer ones, with a strange restriction
This provides slow, steady pressure
Of course, it could simply follow Pokmon Gos lead in allowing trades for friends only
I often wonder how many of those original 2.6 million cards were thrown out in the trash or that were heavily used by some of the first players
Even so, tales of the Chaos Orb live on, including a myth of a player who, about to lose, shredded his Chaos Orb into pieces so it rained down on the opponents cards, destroying that players entire set-up (and theres a subsequent myth that the card-tearing player was ultimately disqualified since destroying the card resulted in a deck that with fewer than the required number of cards)
You may choose new targets for the copies.) Target creature you control deals damage equal to its power to target creature an opponent controls