Gemstone Mine [Judge Gift Cards 2005] Magic 2015 Clash Pack This ability can't cause the

This ability can't cause the total number of +1/+0 counters on Clockwork Avian to be greater than four

"On the field of honor

Set: Guilds of Ravnica Type: Sorcery Rarity: Mythic Cost: {1}{U}{B} Exile all opponents' graveyards

Set: Judge Gift Cards 2007 Type: Sorcery Rarity: Rare Cost: {2}{B} Until end of turn

target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value

Gemstone Mine [Judge Gift Cards 2005] Magic 2015 Clash Pack This ability can't cause theSet: Judge Gift Cards 2005 Type: Land Rarity: Rare Gemstone Mine enters the battlefield with three mining counters on it. {T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.