Well, I'm really not a fan of legendaries at common because the legend rule popping up so often makes both constructed and limited gameplay and deckbuilding worse
This protection and flexibility of activating its ability ensures Skrelv, Defector Mite is put into many competitive Constructed decks
The actual way that the card will typically function is that each player will choose a number (and write it down to prevent them from changing it later and to prove they were thinking of that number), and each player will lose life equal to that number with the player who wrote the smallest number losing half of their life
Even so, a 4/2 for U with no abilities is ludicrously overpowered, but the RNN was only trained for a few hours at this point so it had little understanding of power
They represent a Pokmon that has been trained to the highest levels possible, giving it powerful attacks and new abilities, along with more HP and a diferent Retreat Cost
And last but not least, we have Ditto , a very popular Pokmon that appears with one of the coolest mechanics Ive ever seen in a trading card game