Arnyn, Deathbloom Botanist

Aristocrats decks have always had drain payoffs that pay for any creature dying, from the Blood Artist template on down. This one narrows the trigger to the bottom of the creature scale: only bodies with power or toughness 1 or less set it off. That threshold is the entire engine. The humble one-drop, the leftover token, the mana elf tapped out and thrown away all become a four-life swing on the way out (two off an opponent, two onto you), while your bigger creatures dying do nothing at all. The design rewards a specific board, wide and cheap and disposable, rather than the generalized sacrifice pile a Blood Artist happily drinks from. Every trade or sacrifice you were already making with go-small creatures now moves four life across the table; the trick is that you have to be committed to going small, because the anything-dies payoffs will not.

The deathtouch on the 2/2 is insurance, not the point. It lets the botanist trade upward when pressured, and because a 2/2 sits just outside its own threshold, its own death drains for nothing, a quiet reminder that this card is the reward and not the fodder. It does not build the wide, cheap board it wants; it only pays for one. The go-small shell supplies the deaths, and this waits at the end of them, converting a strategy of throwing away tiny creatures into a life-total problem the opponent cannot trade with.