a deck can have any number of cards named mtg RELENTLESS RATS X4 Masters 25 Magic MINT CARD o:"a deck can have any

Regrowth and gravedigger effects do the same thing after your card's gone to the graveyard

Court of Cunning Mill got a ton of new toys with Zendikar Rising , and Commander Legends gives us at least a few more

Or as many as you can keep around as you attack turn after turn

We actually have a few defenders here and there that just happen to fit our deck that we are running around, and that gives us a milling win-con

Pointing out that another player has a tremendous battlefield state (or making a sacrificial attack into it to demonstrate), that a player has drawn a ton of cards, or that youre underdeveloped compared to everyone else only matters if your opponents cannot assess threats