Fake Sugar Daddy Bank Account

At any time, you may add {x} to your mana pool.
Mana added this way cannot be used to cast
spells or activate abilities of any card other than
Fake Sugar Daddy Bank Account.
{8}: Draw a card. You may activate this ability
only once per turn.
"looking for sexy babes to spend all my mana on
so hit me up on my WhatsApp"