Ertai, the Corrupted Alternate Art Foil: $188.62 Perhaps the best artwork of the bunch by Kev Walker, this version of Ertai shows the villainous legendary Wizard sacrificing a Goblin (looks to be a Mogg) in order to counter a spell
The updated 2021 Mystery Booster: Convention Edition release through WPN stores featured several changes, including the removal of some cards and new artwork for two playtest cards
C Common Tri-Blaze Accelerator X SPELL Continuous Activate this card by sending 1 face-up "Blaze Accelerator" you control to the GY
These include some surprising picks, including: Arcee, Sharpshooter The pink & white lady Autobot from Transformers
Every upkeep, you get a free impulsive draw (exiling cards off the top of your library and being able to play them that turn), but then, for each land card you exile, you get a 3/1 dinosaur token, and for each nonland card you exile, you get a Treasure token
That land is an Island in addition to its other types for as long as it has a flood counter on it