digimon card game diaboromon [BT5-084] [Battle of Omni] – TokenMTG Mega Attribute Digimon TCG Diaboromon BT17-059 R

It's no surprise that the only prerelease card to appear that wasn't also a staff promo belongs to Charizard, cementing the fact that most cards featuring this Pokemon are inherently more valuable due to the subject

Spreading Seas Spreading Seas is one of the rare land hate pieces in blue, and this one draws a card too

Whenever this land attacks, up to one other target creature has base power and toughness 3/3 until end of turn

Of course, this City's value is mostly driven by its presence in the Legacy format, where the difference between popping off on turn and turn two can be the difference between winning and losing