Verdant Touch

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.)
Target land becomes a 2/2 creature that's still a land. (This effect lasts indefinitely.)

Tempest Remastered

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.)
Target land becomes a 2/2 creature that's still a land.

Stronghold

Buyback o3 (You may pay an additional o3 when you play this spell. If you do, put it into your hand instead of your graveyard as part of the spell's effect.)
Target land becomes a 2/2 creature permanently. (This creature still counts as a land.)

The land is still a land and retains all its abilities, plus any other characteristics.

A noncreature permanent that turns into a creature can attack, and its {T} abilities can be activated, only if its controller has continuously controlled that permanent since the beginning of their most recent turn. It doesn’t matter how long the permanent has been a creature.