Generating mana does not give your opponent a chance to react with an instant spell or ability, but as you will usually use that mana to do something else, they'll have a chance to react then
And yes, the doubling from Unbound Flourishing makes Zaxaras tokens even bigger
Ok Melmetal V #47 (Pokemon Go) Details All prices are the current market price
Red needed more card advantage and this is a very well designed and well flavoured way of helping it out
This two-mana enchantment transforms every draw step into a powerful filtering effect that improves hand quality while providing optional card advantage (similar in some ways, to the best Pokmon deck schemes that prioritize many of the same goals)
Electrosiphon is like a mana drain, but for energy counters, granting you energy equal to the mana cost of the spell you countered