Slithering Slugger

Whenever Slithering Slugger attacks, if you control a card with "Baseball" in its name, Slithering Slugger gains double strike until
end of turn.
{2}{b}: Slithering Slugger gains infect until
end of turn. (This deals damage to creatures in
the form of -1/-1 counters and players in the
form of poison counters.)