CURATOR COMMENT
-Your card image and TEXT for the upgraded version do not match. (The upped card should have the phrase, "Immaterial." to match the TEXT phrasing in the table). Both cards also need to include the word, 'Shield', in the card image's description to also match the TEXT in the table.
Nice idea - it'd be great to suppress the effects of spells rather than outright reflecting them, as Fire Stalls nowadays may pack a Mirror Shield for cheap to get around reflective shields. >.>