Support cards are played on the gameboard and take the place of a gem. They offer unique effects once cast. Each Support card has unique rules as to how they affect the board. Try to keep them on the gameboard for as long as possible. The Shield Number on a Support card is the amount of matches it can withstand before disappearing.
TIP 1: You can match the enemy Support gems to remove their effect on the board.
TIP 2: A small arrow on each Support gem shows the owner of the Support gem.