
Flying
If Szadek would deal combat damage to a player, instead put that many +1/+1 counters on Szadek and that player mills that many cards.
Szadek, Lord of Secrets has 4 printings, first in Ravnica: City of Guilds (2005). EDHREC ranks it #18,924 among Commander cards. It appears most in Mirko Vosk, Mind Drinker decks (371 on EDHREC). 2 public decks on TCG run it. It has 1 official ruling.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.