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Luckily, there are a few unofficial options built by the community

Whenever a Tentacle you control dies, untap up to one target Kraken and put a stun counter on up to one target nonland permanent

Whispersilk Cloak also makes its wielder unblockable, making it nigh-impossible to remove outside of using board wipes, or spending two removal spells (one to remove the artifact, the other to remove the creature)

Sneak Attack style decks either find all the bits, do their thing and win, or don't and lose

After that, you get to cast things off the top of your library

Firdoch Core in particular is really interesting, as it can take advantage of a myriad of typal payoffs, not least making a Treasure token when Magda is in play