Thallids were somewhat of a fan-favorite, although they were never actually very good
In a multiplayer game, if an opponent loses life and later that turn leaves the game, you can cast a spell for its spectacle cost
It can give fetchlands a lot more value by earthbending them, making them return to play for incredible landfall combos, and it can make mana dorks and earthbent lands very efficient for otherworldly mana ramp
All it does is tap to scry 1, but as a 2-mana 0/3, "Scryfish" can come down early and do a lot of work without really bothering anyone
Against strategies like Rakdos midrange and mono-black midrange, you have so many cards that go wide that its tough for traditional kill spells to keep you in check
Splinters Technique Under the right circumstances, Splinter's Technique is a Demonic Tutor you can sneak into play for the added value of picking up a good creature