Chandra's Regulator
{1}{R}
Legendary Artifact
Whenever you activate a loyalty ability of a Chandra planeswalker, you may pay {1}. If you do, copy that ability. You may choose new targets for the copy.
{1}, {T}, Discard a Mountain card or a red card: Draw a card.
Kurkesh, Onakke Ancient
{2}{R}{R}
Legendary Creature -- Ogre Spirit
4/3
Whenever you activate an ability of an artifact, if it isn't a mana ability, you may pay {R}. If you do, copy that ability. You may choose new targets for the copy.
Rings of Brighthearth
{3}
Artifact
Whenever you activate an ability, if it isn't a mana ability, you may pay {2}. If you do, copy that ability. You may choose new targets for the copy.