Hydra boss - bugs

[trim nova]

a) The heads are colourless
b) the 5th head's effect doesn't apply

The heads aren't exiled by [[Ugin, the Spirit Dragon]] -X at X = 6

[warped peak]

https://scryfall.com/card/m21/1/ugin-the-spirit-dragon

Ugin, the Spirit Dragon <:mana8:292901508830330880>

Legendary Planeswalker — Ugin
+2: Ugin, the Spirit Dragon deals 3 damage to any target.
−X: Exile each permanent with mana value X or less that's one or more colors.
−10: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.
Loyalty: 7

[trim nova]

The 5th head's exile doesn't specify what it's meant to exile, and nothing appears to be being exiled

@marble holly

And if it's a boss, is it meant to be a best of 3?

[marble holly]

Thanks for the comments.

The color: I didn't really think about this but since the images are green colored this might confuse players, like thinking Ugin's - ability would exile them. (I'll change this)

5th head: This seems strange, In my experience four cards are are exiled at the end of the player's turn, something engine related might have caused this to bug though. I'll check it out.

We decided for it to be a best of 1 since it's supposed to take a while to defeat so otherwise if would be too cumbersome

[trim nova]

Fair. Exiled from where?

Like, library? Grave?

[marble holly]

Library

[trim nova]

Yeah, that wasn't applying

(It should probably specify the zone, either way)