Obsidian Fireheart [Archenemy: Nicol Bolas] XY194 Tap up to five target

Tap up to five target permanents that player controls

Set: Time Spiral Type: Instant Rarity: Common Cost: {R} As an additional cost to cast this spell

1 "Number" monster that has a number between "1" and "100" in its name

if Nether Spirit is the only creature card in your graveyard

Set: Commander 2018 Type: Artifact Land Rarity: Common (Seat of the Synod isn't a spell

Obsidian Fireheart [Archenemy: Nicol Bolas] XY194 Tap up to five targetSet: Archenemy: Nicol Bolas Type: Creature Elemental Rarity: Mythic Cost: {1}{R}{R}{R} {1}{R}{R}: Put a blaze counter on target land without a blaze counter on it. For as long as that land has a blaze counter on it, it has "At the beginning of your upkeep, this land deals 1 damage to you." (The land continues to burn after Obsidian Fireheart has left the battlefield.)