This is good for a lot of reasons
But now for what actually ends your turn
Making your legendary lands cantrip really pushes this one over the top, making it easy to draw two or three cards in a turn
This only applies to Monster Effects and Continuous Effects on Spells and Traps (mainly passives), as activating a Spell or Trap still crates the Link
Best of all, only Sauron, the Dark Lord has good protection with its Ward ability, which will often make it practically hexproof since so few decks would casually sacrifice their legendary Commander just to lower Sauron's shields and target him with removal or other effects.
3 Tinker Bell, Giant Fairy Smashing The Competition Tinker Bell may be small, but Shifting her into Tinker Bell, Giant Fairy will make your opponent think twice about messing with this Fairy