Timmies look at this and see two 6/6 Wurms, and are happy to pay for both, both Spikes know how nasty that 4 mana 6/6 is, and then will do what they can to get it out on the fourth turn, and will move hell or high water to do so
Somebody could have weighed all the packs, taken out the good ones and replaced them with other dud packs
The more high-value categories in your submission, the stronger your payout will be
Theyre commonly resistant to Fighting and Water - depending on if theyre a Bug, Poison or Grass-type respectively - while also typically being strong against Water, Fighting and Darkness Pokmon
See rule 707, Face-Down Spells and Permanents. 711.9a While face down, a double-faced permanent cant transform
Look for Mai to produce wins in bigger formats than Standard, where her speed is going to prove a major asset