You may be right, and it would make sense to continue the story by answering the mystery of where she went when she left Kozi and Ula to have their fun.
An error that an opponent has no opportunity to verify the legality of should have its penalty upgraded. These errors involve misplaying hidden information, such as the morph ability or failing to reveal a card to prove that a choice made was a legal one. If the information was ever in a position where opponents had the opportunity to verify the legality (such as on top of the library, as the only card in hand, or on the battlefield), do not upgrade the penalty and reveal the information if possible.
Since the card was on top of the library before it was drawn, it was in a position where the opponent could verify the information (in this case, by pointing out that it should be revealed). The solution is to reveal the card if possible (in addition to the warning).
This thread has drifted a bit too far into arguing semantics.
If you're concerned about clarifications to rules and/or templating, please direct your question to Wizards' Rules Theory and Templating forum on the mothership.
Yes, sommoning sickness applies to an creature that you have no continuously controlled since the start of your most recent turn.
That said, you can still activate Grimgrin's ability to untap him right away. The only things that summoning sickness stops are: attacking, and activating abilities with the or symbols.
Grimgrin's ability has neither of those sybbols in it, so it is unaffected by him having summoning sicness.
Since the card was on top of the library before it was drawn, it was in a position where the opponent could verify the information (in this case, by pointing out that it should be revealed). The solution is to reveal the card if possible (in addition to the warning).
I guess I should go watch season 4 before that happens :3
They will have a waelth of experience with this sort of thing.
If you're concerned about clarifications to rules and/or templating, please direct your question to Wizards' Rules Theory and Templating forum on the mothership.
That said, you can still activate Grimgrin's ability to untap him right away. The only things that summoning sickness stops are: attacking, and activating abilities with the or symbols.
Grimgrin's ability has neither of those sybbols in it, so it is unaffected by him having summoning sicness.