That card must be an Angel, Demon, or Dragon creature, and it's automatically tapped and attacking along with Kaalia
Whenever this creature attacks while you have the most life or are tied for most life, you draw a card and you lose 1 life
It gets even better in EDH decks like Tergrid, God of Fright, where youll profit if they discard cards or sacrifice creatures
Ravensburger has confirmed that itll be making up-to-date versions of Bucky available via reprints later this year, and future printings will follow the new, erratad text
Oh, and if you arent sure about which of the two decks you should buy, dont go anywhere
Speaking of offensive pressure, Jesus Burgess is one of your toughest attackers