Confirmed Verdant Haven on an opponent's land

[r10pez10]

Game ID

921676996

Trust me to find a weird one.

1. Cast Verdant Haven targeting an opponent's land.
2. Expect for opponent to get the additional mana when enchanted land is tapped.

3. Unexpected: *I* get the mana when the land is tapped.

Verdant Haven's relevant wording:

Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color.

Cheers!