pokemon card squirtle full art - 039 Protected in a tamper Squirtle (95/110) [Legendary Collection] Moderately

This card shows that mana dorks that cost two mana usually tap for one mana on their own but offer some additional benefit

1Riptide Turtle

At the beginning of your next main phase, add an amount of equal to that spell's mana value

You have cards that make lots of Vampire tokens (like March of the Canonized, Mavren Fein, Charismatc Conqueror, and Sorin), cards that make Vampires bigger (like Legion Lieutenant, Etchings of the Chosen, and Radiant Destiny), as well as cards to keep your Vampires in play (like Timothar, Kindred Boon, and Dusk Legion Lieutenant)

When does the controller of Gleemax choose the target

All your Dragon cards can come down at least one turn earlier, putting you above the curve as far as when players should expect your powerful cards to hit the battlefield