Thats 40 Lightning Bolts, for those of you counting
Any choices made as you put the ability onto the stack, such as modes and targets, are made separately for each instance of the ability
You get a decent creature, a draw effect, and even the opportunity to transform excess land into removal
You can fill your graveyard with Grisly Salvage and Mulch, draw cards with Night's Whisper and Harmonize, kill your opponent's creatures with Putrefy and Ob Nixilis Reignited, resurrect your dead creatures with Reanimate and Deadbridge Chant, or stymie your opponents with Arachnogenesis or Inscription of Abundance
The card reads: Whenever one or more nontoken creatures you control die, create a green Fungus Dinosaur creature token with base power and toughness each equal to the total power of those creatures. If your creature dies, it just comes back to life as a mushroom dinosaur