Frequently, we had to stop play to pore through the Reference Guide to decode the meaning behind the various icons printed on certain cards: the squiggly lightning bolt (free triggered ability), the arrow curving back upon itself (reaction-triggered ability), or the right-facing arrow (action-triggered ability, which uses up one of your three available actions per round)
This is a dead draw if it hits a player's hand after their Draw Phase, so fetching it with Pot of Duality is usually unwise
SCRYFALL RELATED PRODUCTS:
When this Set card is sent to the Graveyard: You can add 1 "Sargasso the D.D
Assuming 18 boxes is ~1.84 in (46.8 mm) long, this means a 16,384 box long Dot Code bar would be about 139.75 feet (~ 42.6 m), which is a shade below half the length of a football field (American or Association, take your pick)