It makes sense that the color of life, growth, and verdancy would be a core color that utilizes ramp
We're going with 18, which probably seems light, but when you consider we have 11 mana dorks (and 14 if you count Marwyn, the Nurturer) along with four copies of Once Upon a Time, the number of mana sources is actually much higher
Like Drumbellower and Diversionary Tactics, this card only has one printing, and is currently sitting at half a dollar - a small price to pay for a card that can not only provide your crime triggers each turn like the other recommendations, but can also do it as many times as you want for free
Blood Fast allows you to do some nice late game ramping without over doing it on land count.You get to play what feels like an extra late game land while increasing the enchantment count in the deck
Then Ive got two sets of top fives to round the list out
"I have played it three times and it has actually won twice," Potatowheelchair admitted