Crystal Rod [Revised Edition]

Crystal Rod [Revised Edition]Set: Revised Edition Type: Artifact Rarity: Uncommon Cost: {1} Whenever a player casts a blue spell, you may pay {1}. If you do, you gain 1 life.

the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card

Set: Dragons of Tarkir Type: Basic Land — Mountain Rarity: Common ({T}: Add {R}

When Wormfang Turtle leaves the battlefield

Set: Dragons of Tarkir Type: Artifact Rarity: Uncommon Cost: {4} {2}

Set: Conspiracy: Take the Crown Type: Sorcery Rarity: Rare Cost: {B} Target player reveals their hand

As long as you have the city's blessing

Set: Gatecrash Type: Sorcery Rarity: Uncommon Cost: {G} Shuffle Serene Remembrance and up to three target cards from a single graveyard into their owners' libraries

it deals that much damage to you

Set: EX: Ruby & Sapphire Type: Grass Rarity: Ultra Rare Retreat cost: Colorless

Set: Torment Type: Creature — Nightmare Horror Rarity: Rare Cost: {4}{B}{B} When Laquatus's Champion enters the battlefield

and how the skin peels back

Some are filled with things best left unseen