Molten-Tail Masticore [Scars of Mirrodin]

Molten-Tail Masticore [Scars of Mirrodin]Set: Scars of Mirrodin Type: Artifact Creature Masticore Rarity: Mythic Cost: {4} At the beginning of your upkeep, sacrifice Molten Tail Masticore unless you discard a card. {4}, Exile a creature card from your graveyard: Molten Tail Masticore deals 4 damage to any target. {2}: Regenerate Molten Tail Masticore.

He simply harnessed it

At the beginning of the upkeep of enchanted creature's controller

Each land with an activated ability that isn't a mana ability doesn't untap during its controller's untap step

Set: Homelands Type: Instant Rarity: Common Cost: {1}{U} Counter target spell

"Ice can be shaped to any form

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {3} You may choose not to untap Vedalken Shackles during your untap step

Whenever an artifact enters the battlefield

The emotional echoes of dryad gatherings attract lost souls

Set: Lorwyn Type: Sorcery Rarity: Rare Cost: {3}{G}{G} Choose two —

choose a player

Set: Ravnica: City of Guilds Type: Artifact Rarity: Uncommon Cost: {2} {3}

choosing only those whose bloodlines have been pure for generations