Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Toolbox Buy This Card Notes and Rules Information for The Water Crystal: The cost reduction applies only to generic mana in the total cost of blue spells you cast
She's also a dwarf, and she gets her type updated to 'Vampire Dwarf'
You won't add mana, no opponent will lose life, or you won't gain life, as appropriate
You will still probably play the mill cards that force people to mill half of their library, sure, but youre actually using those to make your main win condition gaining life work with Hope Estheim
a powerful hasty threat that smacks your opponents with a ton of damage and demands an immediate answer unless they want to die over the next combat step or two
A counterspell for noncreatures at two mana that also prevents your opponents from casting noncreature spells for the rest of the turn feels pretty powerful, even though its not without its limitations