Magmatic Core [Coldsnap] Elf Artificer Druid Set: Amonkhet Type: Creature —

Set: Amonkhet Type: Creature — Lizard Rarity: Uncommon Cost: {5}{G} Cycling {3}{G} ({3}{G}

After the Foundry Street riot

Set: Classic Sixth Edition Type: Artifact Rarity: Rare Cost: {1} Creatures with power 3 or greater don't untap during their controllers' untap steps

Set: Pro Tour Promos Type: Creature — Dragon Spirit Rarity: Rare Cost: {5}{W}{W} Flying

Set: Magic 2013 Type: Creature — Hydra Rarity: Mythic Cost: {X}{G}{G} Primordial Hydra enters the battlefield with X +1/+1 counters on it

Magmatic Core [Coldsnap] Elf Artificer Druid Set: Amonkhet Type: Creature —Set: Coldsnap Type: Enchantment Rarity: Uncommon Cost: {2}{R}{R} Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) At the beginning of your end step, Magmatic Core deals X damage divided as you choose among any number of target creatures, where X is the number of age counters on it.