Saint Petersburg
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How can you tell an upgrade (trading) card from an ordinary card once it is face up in the row?
The rulebook's elements list describes the square on the back and the border on the cost.
- Saint Petersburg rulebook · Rulebook · The Elements of the Game
- Warbanner · Community · 2007-09-18
- Aldaron · Community · 2007-09-18
- eknauer · Community · 2007-09-18
Upgrade cards have a square on the back and a border around the cost on the front, so they can be told apart from ordinary cards once face up.