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{T}, Pay 1 life: Add one mana of any color.
'At the beginning of your upkeep, flip a coin. If you lose the flip, this artifact deals 3 damage to you.
{T}: Add {C}{C}.
'Whenever a player taps a land for mana, that player adds one mana of any type that land produced.
'At the beginning of your upkeep, flip a coin. If you lose the flip, this artifact deals 3 damage to you.
{T}: Add {C}{C}.
'This artifact doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap this artifact. At the beginning of your draw...
'Whenever you cast a multicolored spell, this enchantment deals X damage to any target, where X is the number of colors that spell is.
'This artifact doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap this artifact. At the beginning of your draw...
'Tap all lands target player controls and that player loses all unspent mana.
'Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose...
'{1}, {T}: Add one mana of any color.
'Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add {C}.
'All Nightmares get +1/+1. {B}{B}{B}, Pay 3 life: Put target creature card from a graveyard onto the battlefield under your control. That creature is black and is a Nightmare in...