It's typically better to look for repeat cards within one or two colors that you can use to create a consistent strategy
The idea here is to cast many noncreature spells, deal damage to your opponent spellslinger-style, and use this extra power from Vivi to add more mana
Each opponent sacrifices a dork that damaged you
Not quite as affordable as Deep-Cavern Bat, but undeniably effective
Here is the breakout for the two cards that you get in this slot, noting that any percentage listed is the possibility for getting the cards in the two slots total, so the percentages will add up to a total of two cards: 20 MH3 extended-art rares (45.4%) and 1 MH3 extended-art mythic rare (1.1%) The borderless treatments that show up, including 20 rare (29.6%) and 3 mythic rare (2.8%) borderless frame break cards, 10 rare (18.2%) and 5 mythic rare (4.6%) borderless profile cards, 3 mythic rare (1.7%) borderless concept Eldrazi cards, and other borderless cards, such as 5 rare (5.7%) fetch lands, 5 other rare (11.4%) lands and 1 other mythic rare (1.1%) land, and 5 mythic rare (5.7%) DFC planeswalker cards
There are fifteen cards plus a foil token in each Collector Booster found in eight "slots" in the booster
