The art depicts a desperate battle in the ruins of Latveria, with Wolverine, Iron Man, and Spider-Man attempting to halt a rampaging Red Hulk
Red Elemental Blast a very efficient way to win counterwars or kill a fast Serendib Efreet, while Blue Elemental Blast is used against very aggressive burn decks, and is especially helpful against Blood Moon
Creature - Human Pirate Fathom Fleet Swordjack Whenever this creature attacks, it deals damage to the player or planeswalker it's attacking equal to the number of artifacts you control
These are a bit different than the others as these will not give you doubled tokens, but rather, give you a specific token for each other token
In an aggressive deck, this is likely to be more than enough to kill them off - and that's not accounting for any extra creatures you may have, any ramping you've done or spare mana you've created
Dominaria United Jumpstart Boosters come in one of ten themes, and when you put them together, chaos ensues