Each Collector Booster contains the following: 15 Magic: The Gathering cards 4 Traditional foil commons From among 81 commons and 10 common two-color lands 3 Traditional foil uncommons From among 100 uncommons 1 Non-foil common or uncommon showcase draconic frame card This can be 1 of 6 commons (54.6%) or 15 uncommons (45.4%)
As for Captain HowlerCaptain Howler, Ledger ShredderLedger Shredder triggers on you playing your second spell as well, meaning in the very real scenario that you play down a Ledger ShredderLedger Shredder, it gets two +1/+1 counters as the table goes through their turns while it has summoning sickness, and then you untap to play two spells, Ledger ShredderLedger Shredder will be a 6/6 flier that draws a card when it hits
Poisonous was only printed on Snake Cult Initiation and Virulent Sliver, which has since become a staple in Pauper sliver decks
Expanded is an incredibly fast format that doesn't usually have space for you to play anything but GX, EX, and V Pokemon, meaning cards like the ability-nullifying Power Plant and the earlier-mentioned Silent Lab fit perfectly
You might hear folks refer to these combinations as shards - three complementary colours situated next to each other on the traditional mana wheel - but that distinction doesnt matter as much as how it informs the kind of illicit operations the families run and who are counted among their members
