{T}: Add {C}{C}. Spend this mana only to cast Myr spells or activate abilities of Myr. {3}, {T}: Return target Myr card from your graveyard to your hand.
A mana well as bottomless as the myr are tireless.
2011-01-01
A card, spell, or permanent is a Myr only if it has the subtype Myr, regardless of its name. For example, Myr Reservoir itself is not a Myr.
2011-01-01
The mana can't be spent to activate activated abilities of Myr sources that aren't on the battlefield.
2011-01-01
You can use the mana produced by Myr Reservoir's first ability to pay an alternative cost or additional cost incurred while casting a Myr spell. It's not limited to just that spell's mana cost.