Land
T: add 3 to your mana pool
When the number of basic land types among lands you control is 4 or less, flip ~this~.
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Legendary Land
Discard a card: put a depletion counter on ~this~
Remove three depletion counters from ~this~: ~this~ deals 3 damage to target attacking or blocking green creature. Creatures damaged this way can't be regenerated this turn and tap that creature
All permanents gain protection from red
At the beginning of each opponent's end step, tap target permanent

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AlexChurchill/TypeFourLandGenerator