using mtg cards in d&d All Magic: The Gathering Formats Explained – A Complete Guide – Game Kastle You Should Be Playing This

BTW, Insectile Aberration has no manacost

Commander Text: Cascade(When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less You may cast it without paying its mana cost Put the exiled cards on the bottom of your library in a random order.)

Whenever Oracle of the Alpha attacks, scry 1

Here is the interesting part: both classifiers are trained with real Magic cards, and tested with cards it has not seen before, to make sure it is classifying new cards correctly

Summoning sickness restricts attacking and tap abilities, not being sacrificed

Those abilities trigger whenever you sacrifice a Clue for any reason, not just to activate a Clues activated ability.