Unexpected indeed, but I'll take it!

Secrets of the Liquid Flame

Sorcery

Deal damage to any target equal to the number of basic islands in play.

If 8 or more damage is dealt to a player this way, that player takes an extra turn.

Exile ~.

Make a lifegain Sorcery next

The Last Sliver

Legendary Creature - Elder Sliver

Players can't cast spells that share a creature type with Slivers you control.

When you cast this spell, search all libraries, hands and graveyards for a non-Brushwagg Creature card with mana value less than the amount of mana spent to cast this spell and exile it.

Sliver Creatures you control have all types and abilities (activated, triggered and static) of the exiled card (in addition to their other types and abilities).

Whenever another Sliver enters, exile this permanent.

6/6

Ok, let's do another round of this

(Make an Elder creature of a creature type that doesn't yet have any elders)

The future is now

^ That is my favourite answer, I'll take it as the official ruling on this matter :D

Ok, I concede my argument at this point, although an official text on how MAY abilities work would really convince me that I am wrong here and has not been provided yet.

Ok, one last thing and sorry for triple posting:

How many times do new players forget to fetch a land when something like Path to Exile hits their creature?

No one gets to pressure them to make a choice. They simply ignored it/forgot about it and the game is 100% cool with that - no amount of judge calls will revert the game state once you "forgot".

Imho, this is a good example of how the spirit of the game wants to handle MAY abilities. You can literally do nothing / ignore it completely / forget about it and the game moves on without a problem.

EDIT: All I found was a discussion from 2007 (sigh) where poeple, including a lvl 3 judge talk about may abilities. They conclude that "May abilities do not happen if you do not declare them"

Link to MTG Salvation

Sadly, this is the best I got

capwner Arguably, it doesn't, as it is a MAY ability.

I understand where you're coming from. We would need definitive rules to understand how exactly the game handles "MAY" abilities.

Arguably, and this is how I interpret it, a may ability can entirely be ignored by the player(s) it is affecting. There is no choice against it. This is how it is different from a "CHOOSE" ability.

If Obeka's ability was somehow worded "TAP: target player who's turn it is chooses one " 1) end the turn 2) don't end the turn" I'd say this works and you're right.

My interpretation allows MAY abilities to be ignored entirely as they are an implicit choice, not an explicit choice. If MAY abilities worked the way you and others suggest, then, in a multiplayer game, every player would be taking action and be involved in every step of the game, thus, also the loop we're talking about, since they have to "let this resolve without me taking action and pass priority". But this is all the AP does in the event they choose to not act on the MAY ability.

Unfortunately, MAY abilities are not covered explicitly in the CR or at least not in a way that would resolve our question.

I really think we should get definitive supreme court ruling from the rules manager on this one tbh.

The real question remains imho, does "resolves, pass priority" count as taking active action the way required by the rules for this to "work" in a way intended by OP.

Also, imho, in the whole loop process, when the Obeka player demonstrates it, they are the only ones who don't pass priority on an empty stack, thus preventing the game from moving forward... it's not like stuff is triggering automatically... they are activating it over and over.

Obeka: "Do the loop 1000 times"

AP: "resolves, pass priority 1000 times"

Obeka: "One more time"

I understand what ya'll mean but 1) I'm not convinced and 2) this interpretation seems like it is not in the spirit of the game, which certainly does not mean I'm right and you're wrong.

Obeka player: 'put my may ability on the stack'

AP: 'resolves'

Please explain how the AP is taking action, if it's put this way.

To be fair, a nonzero amount of fanfic is happening in the card creation forum. Not that any fanfic would go there, but just saying