digimon card game blue deck (ST-21): Hero of Hope Description The Bandai Digimon Card Game Start Deck Ultimate Ancient Dragon St David Lago: Won 2 Ultimate

Theyre strongly related to mana production and creature numbers, and very strong cards like Rofellos, Llanowar Emissary, Leovold, Emissary of Trest, and Priest of Titania, not to mention the support like Gaea's Cradle or Craterhoof Behemoth

Going from $220 to $170-$180 is definitely a discount

Once per turn, during your opponent's End Phase: Place 1 counter on this card

So, there is some flexibility in what you cast but a restriction on how many times the effect can trigger, namely once a turn per turn (unless you go infinite turns, then it doesnt matter)

Obviously, that number was hyperbolic, but then I wondered after the fact if I could indeed come up with a list that large off the top of my head