Contact Other Plane Most of the time Contact Other Plane will be a little worse than Behold the Multiverse, but every time you roll 20, it will be extremely gratifying
Speaking of honorable mentions, Ranger of Eos is another crazy good card that was within striking distance of the top 25, and a good case could definitely be made for it, thanks to its ability to find Figure of Destiny, Martyr of Sands, and/or Wild Nacatl over the years
Its important to note that Grief is a much better topdeck than Thoughtseize in the later game, and having your disruption double as a threat in a pinch is a killer advantage
Move damage and setup for banishing your opponent's cards on the next turn
Id play 10 of it if the rules of Commander allowed it
Even at its baseline, the one-mana enchantment would be solid in squirrels, as a repetitive way to make Food and enable Forage as you trade off your creatures in combat