Im not sure if Id jump through too many hoops to try to break this card, but in any deck where youre running enough pinpoint removal to destroy a creature, or sacrifice outlets to kill your own creatures, this might be worth a slot, especially if youre also running token synergies too, like Chatterfang, Squirrel General or Grismold, the Dreadsower
While the Buster Sword is better some might call it busted The Masamune is more niche but still hugely powerful with the right deck strategy
For the cost of six mana, Titania allows you to cast Forests from your graveyard, notably creating a 5/3 Elemental token whenever a Forest enters the battlefield under your control
Why its helpful Characters with Vanish are usually Illusions and have high stats for what they are
Landfall Whenever a land you control enters, mill a card