mtg cards like impact tremors [140] [Dragons Of Tarkir] [Foil] – Face to Face Games Whenever a creature you control enters MTGNexus - Impact Tremors

Quite appropriately, several characters from the Madrigal family were also expanded to 4 copies, removing characters that didn't have much to do with the strategy, such as Madam Mim - Up to No Good or Ryder - Fleet-Footed Infiltrator

III Each tapped creature deals damage to itself equal to its power

So you can play what can seem to be a risky, aggressive game, before shocking your opponent with Chernabog

Which is itself not a bad Standard card by any means But in the current fast-paced Standard metagame, where mice and buffed monks can get you very dead very soon, it's hard to see how a worst Harvester may find its way into top-tier decks

Frilled Sparkshooter's last ability cares whether an opponent lost life this turn, not how their life total changed