There's likely a shell somewhere where this could work, but it's probably not worth trying to make it happen
The play pattern goes like this: you cast Taniwha and pass turn, then on your next turn you untap and Taniwha phases out, then on your next turn Taniwha phases back in and your lands phase out, on your next turn Taniwha phases back out and your lands phase in, etc
Sure, Vesuva comes into play tapped, but thats not really a problem when youre cloning cards like Dark Depths, giving you a free 20/20 indestructible monster
Unlike Master of Ceremonies, which interacts with "voting", Mangara, the Diplomat first checks if your opponent is attacking you and/or planeswalkers you control with two or more creatures
Koma, Cosmos Serpent / Koma, World-Eater I absolutely love Koma, Cosmos Serpent
You will also find the term booster box a lot