Duergar Hedge-Mage [March of the Machine Commander] Condition:Moderately Played if All Hallow's Eve is

if All Hallow's Eve is exiled with a scream counter on it

Until the Hydra’s next turn

Set: Battle for Zendikar Type: Creature — Plant Rarity: Uncommon Cost: {G} Defender

Set: Onslaught Type: Enchantment Rarity: Rare Cost: {1}{W}{W} At the beginning of your upkeep

This one expects some in return

Duergar Hedge-Mage [March of the Machine Commander] Condition:Moderately Played if All Hallow's Eve isSet: March of the Machine Commander Type: Creature Dwarf Shaman Rarity: Uncommon Cost: {2}{R W} When Duergar Hedge Mage enters the battlefield, if you control two or more Mountains, you may destroy target artifact. When Duergar Hedge Mage enters the battlefield, if you control two or more Plains, you may destroy target enchantment.