Even if your opponent has an evasive or big enough creature that Sokrates can't block, you can tap him to prevent the creature's damage and refill you and the attacking opponent's hand
Green has loads of in-color synergies that work, and you don't even need to do this as a sorcery, so you can wait until the end of someone's turn, tap out and discard a card and dig up something nice and toss it onto the battlefield
The MTG Assassin's Creed set will be released on July 5, and can be used in Modern, Commander, Legacy, and Vintage
Glint-Horn Buccaneer This minotaur pirate is an interesting one, caring specifically about discarding cards
Tapping on it lets you toggle advanced play modes on and off, giving players more options based on their experience level
Common methods for indicating this include using markers or dice, or simply placing them in order on the battlefield