EnergybendingEnergybending allows you to abuse the various cards that care about basic land types, and in Dimir, that is both High TideHigh Tide and about a dozen "cares about Swamps" cards
This copy is not legendary, and it has myriad
Sacrificing tokens doesnt count as descending since theyre not cards, so going deep on saproling aristocrats doesnt yield the desired results
Creating a mechanic that is positive in doses, but negative in abundances is not an easy task
Theres a risk, one mitigated by lots of ramp so you have plenty of mana
Not only is this card one of the oldest of this kind of advantage, but it's definitely still a card that sees play today, as its power level is very apparent especially when used in conjunction with incidental life gain cards (paired with Uro, Titan of Nature's Wrath, another piece of Green/X card advantage)