The benefit is marginal, but Magic is a game of small decisions
For example, if an opponent draws a second card, casts a second spell, and attacks you with two or more creatures in a single turn, Trouble in Pairs's last ability will trigger once when each of those events occurs, for a total of three times
It's crazy the number of times I saw players miss card draws, use Clamps when they should have waited, or killed off men too early
The main reason you want to be playing with this green creature is to cheat it out early, then cast something like Neoform to bring out something even bigger
Unearth only as a sorcery.) Creature - Demon Archfiend of Spite Flying Whenever a source an opponent controls deals damage to this creature, that source's controller loses that much life unless they sacrifice that many permanents of their choice
Contentious Plan + Experimental Augury Contentious Plan and Experimental Augury are proliferating cantrips, both for 2 mana