Based on this card alone, this could be a deck that focuses heavily on interaction with the graveyard to discard and recall lands, but more realistically, it is likely that the deck will be set up to pull mana from sources other than just lands to allow for the discarding of lands without it impacting the deck too negatively
(At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When this creature dies, draw a card for each age counter on it
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Its Grass-typing is also dangerous, as it can make use of type-specific healing cards such as Erika and Leaf Cape to keep it on the field longer
Over time, I suspect that these will continue to climb due to the Secret Lair not being printed to demand