https://media-dominaria.cursecdn.com/avatars/272/969/636898131337888364.png

The hero Ravnica needs

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Now I'm wondering if it's possible to make a Changeling-style card that's in all zones at all times

I won't lie, I'm a little disappointed that he isn't a planeswalker. Still a fantastic take on him. I especially love how Fblthp gets way more lost than anything else if you actually cast Totally Lost on him.

And now I'm working on a Fblthp Commander deck.

Bolas goes to his Citadel and schemes. "Soon, I will have ultimate power!"
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"Hey! Where did all these Fblthps come from?"

But seriously, there are now two ways in Standard to cast Fblthp from your library.

Also thinking of Amass in Modern. You know what's an army and likes getting bigger? Changeling Colossus.

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Pretty sure homonculi in Magic are created beings, which in canon cannot have sparks.

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Funny that you should say that...

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Fblthp, Heir of Bolas 2U
Legendary Planeswalker — Fblthp
If Fblthp, Heir of Bolas would die, shuffle him into his owner's library instead.
+1: Scry 2.
-1: Look at the top card of your library. If it's a Homunculus permanent card, you may put it onto the battlefield. Otherwise, draw a card.
-7: Shuffle all creatures your opponents control into their owners' libraries.
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