How come Vodalian Mindsinger, with a merfolk riding a kavu, gets to be typed merfolk, while Monstrous War-Leech, with a homarid riding a leech, is just typed leech horror? THIS IS HOMARID DISRESPECT

The Voldalian Mindslinger is the Merfolk while the Monstrous War-Leech is the Leech.

Incite and Singe are red spells that change colors. Where is color changing as a side-effect on the color pie? Is is something all colors can do (lace-like) or is it focused in one color? Asking because it the examples I found are rather old and likely don't indicate modern pie tendencies.

Every color can turn things its color. Blue can turn things any color. And green has creatures that can turn any color. We don’t do color changing a lot these days.

So today is my birthday and I was wondering if you had anything you could share about my fave limited cards from theros, Returned Phalanx and Shipwreck Singer?

Shipwrecked Singer came about because we realized that Sirens had two defining qualities - they lured people and they killed them. We realized we could do the first in blue as forced attack and the second in black as a withering effect on attackers. We purposefully only put a tap on the black ability so you could use them together and lure creatures to their death. Perfect black and blue card. Happy Birthday!

A quote I figured you might like from Shigeru Miyamoto "a good idea is something that does not solve one singe problem but rather can solve multiple problems at once"

I had not heard that before, but I like it.

Sorry if this as been addressed before. Some multicolored cards follow the order of WUBRG in their mana cost. WUBRG cards cost WUBRG, UB cards are UB, etc. But other cards like WG cards cost GW and WR cards cost RW. Why is that?

Here is Del Laugel, Magic’s lead editor answering this question in a 2002 Ask Wizards question: Q: "Why do mana symbols seem out of order on various gold cards? Some cards requiring green, white, and blue mana, like Treva’s Charm (), have it in that order. Some cards, like Phelddagrif(), go white, blue, and then green. Rubinia Soulsinger () goes blue, white, green. Shouldn’t there be more organization?“
– Cid Silhouette, Boston, MA A: From Del Laugel, Magic technical editor:
"As you’ve noticed, three different systems have been used in the past to order mana symbols on cards. One system always put the colors in the order white-blue-black-red-green, and that ordering was used for Ice Age, Tempest, and Chronicles. Another goes clockwise around the "pentagon of colors." Mirage block used that ordering, and we’ve been following it consistently since Stronghold. And then there’s the Legends system, which involved throwing mana symbols into a hat and then pulling them out at random. "Our current (and final!) system for ordering mana symbols is pretty simple. If you look at the back of a Magic card, you’ll see the pentagon of colors. Going clockwise, the colors are white, blue, black, red, green, white, blue, black … . To order a pair of mana symbols, find them in that list, and then put them in whichever order puts the fewest colors between them. For example, white/red has two colors in the middle (blue and black), but red/white has only one (green). That’s why Goblin Legionnaire’s mana cost is . "Then came the Apocalypse 'wedge’ cards. Our system breaks down when you’re trying to order two friendly colors and their common enemy, and Apocalypse has five rares with mana costs that fall into that category. For Lightning Angel’s mana cost,  and  are equally valid options. In the end, I decided to put the enemy color pair first. ”(Yes, I know that the Apocalypse split cards all violate the color order. It was decided that those five cards would be easier to name that way.)“