Like Ugin, Karn is typically a little better suited to the more controlling ramp decks as it takes so long to get loads of value from them
But when the same "out-of-place-ness" is the point, it takes on a whole different shape and becomes a focal point instead of glaring disconnection
Its not a particularly popular set, with scant few chase cards , though its worth mentioning that in terms of playability its got some of the best Pokmon cards in more modern sets
The other spell may be one that was countered or didn't resolve for some reason, or it may be one you cast in response and is still on the stack
Whether as a diary, bullet journal, or companion for tournaments, 160 blank pages in a special parchment look offer plenty of space for deck-building strategies, fan art, or your own magical stories
Invigorate is basically always free to cast (and therefore easy to copy with Riku) because you can always give the three life to an allyor give it to a person you are planning on killing with Riku commander damage, since that bypasses life totals anyway