Hellspark Elemental [Duel Decks: Sorin vs. Tibalt] Griffin other creatures you control get

other creatures you control get +1/+1 until end of turn

Whenever Hungry Spriggan attacks

Furyblade Vampire gets +3/+0 until end of turn

Set: Return to Ravnica Type: Land — Swamp Mountain Rarity: Rare ({T}: Add {B} or {R}

As Volrath's Motion Sensor enters the battlefield

Hellspark Elemental [Duel Decks: Sorin vs. Tibalt] Griffin other creatures you control getSet: Duel Decks: Sorin vs. Tibalt Type: Creature Elemental Rarity: Uncommon Cost: {1}{R} Trample, haste At the beginning of the end step, sacrifice Hellspark Elemental. Unearth {1}{R} ({1}{R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)