This is the rare Japanese booster version of the hot War Of The Spark mtg expansion set
Aatchik, Emerald Radian Imagine how big Aatchik, Emerald Radian must be for it to cost six mana
The addition of this little art change to the reprints created a cool feel, and if you were at the prerelease, they pushed that even further with re-arted cards that demonstrated the time travel idea, often in suitably real ways
It's logic like that which made it feel like Violent Outburst was safe to be unbanned, despite being banned two years ago
If you do have to use the planeswalker kill mode you are basically getting a 1 for 1 at very even mana
This big beast costs 8 mana in total and is a 5/5 with haste, but it also has a powerful ability: "When this creature enters, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control." If a player has a board of around 10 creatures, and they slam down a Craterhoof, they're likely to take out multiple opponents in one turn