Take an extra turn for 7 mana
In theory, with a Naban, Dean of Iteration on the battlefield, you only need half the number of blue mana symbols on the battlefield to make Master of Waves good (for example, in the worst-case scenario where you have just a Naban, Dean of Iteration and a Master of Waves, you'll still end up with 10 power across five bodies, which is a pretty reasonable deal for four mana, and if you throw just one other Wizard into the mix, things cat get out of hand really quickly when Master of Waves' enters-the-battlefield trigger is doubled)
Despite D&D more directly drawing inspiration from Lord of the Rings (to the point of legal action), it's Magic: the Gathering that gets to first collaborate with them in an official capacity
Something I find funny about this card is another infinite you can do
This is a small feature that saves a shocking amount of time, mostly because it eliminates the why is my mana symbol a tofu box problem
Grimgrin, Corpse-Born [Best Repeatable Sacrifice Outlet and Scaling Threat] Grimgrin serves as both a repeatable sacrifice outlet and a scaling win condition , growing larger with every Zombie fed to him