­Surrakar Banisher + Vedalken Engineer

Guess I'm making a blue creature. The first one unsummons something; and the second one make mana for your artifacts.

How do those abilities go together? I mean, we could go boring and unsummon an artifact on ETB... But how about unsummon mana?

That has horrendous timing issues; which is one reason we don't see Mana Short any more. Even though it had that lovely completely-unrelated rose on it.

But I kinda want to make "Drain target players mana pool; in their next main1 they get it back". So you can use it as a quick mana battery on yourself, or to mess up an opponents spell.

But you can't do that second usage any more; because timing never really worked and nobody (normally) floats mana. I guess we could have it as a counter for those rare cards which do make you want to float mana.

But mehhhhh that just leads to the opponent choosing not to, and anyway the ability to double your own mana (and then redouble it!) is just too too much. So let's not.

Oh fiddlefaddle. Let's just have power=floated mana, and the ability to hide it away until a later phase. ... but maybe make it not quite as effective. Gain half of it back, let's say.

Right, this card is now officially fiddly to work with. So making it rare. (Even if, really, it's just fire-breathing-ish).

What kind of creature breathes mana? A Dingus! Annnd the image-search does the rest of the flavour for me. It seems there's a sub-type of Dingus; the doggo. Here is one. He's fluffy, and stupid, and; as of now; breaths mana.