mtg build a deck with my cards What sites can help Magic: The Gathering list from existing card collection? Do I build a pinkie

Proxy cards are not allowed in official tournaments and some causal players frown upon them as well

Whether it blocks or becomes blocked, or if you inflict damage to it with one of your cards or creatures abilities, you'll create a token of Polyraptor

The six-cost with delve Black 4/5 Tasigur, the Golden Fang can spend 4 mana any time to mill two and then reload a nonland to your hand of any opponent's choice - no matter what they choose you'll trigger and mill too

That includes during your opponent's turn, or in response to game actions, like your opponent declaring a blocker, or the turn moving from one phase to another

No, you cannot block fight

So perhaps more design space in energy is to come