Conversion [Alpha Edition] San Diego Comic-Con 2014 that player sacrifices a permanent

that player sacrifices a permanent unless they pay {1}

Set: Beta Edition Type: Sorcery Rarity: Rare Cost: {3}{W} Destroy all lands

(They can't be blocked as long as defending player controls a Forest

Set: Planar Chaos Type: Enchantment Rarity: Uncommon Cost: {2}{R}{R} At the beginning of the end step

Remove a mining counter from Gemstone Mine: Add one mana of any color

Conversion [Alpha Edition] San Diego Comic-Con 2014 that player sacrifices a permanentSet: Alpha Edition Type: Enchantment Rarity: Uncommon Cost: {2}{W}{W} At the beginning of your upkeep, sacrifice Conversion unless you pay {W}{W}. All Mountains are Plains.