Distribution at that scale, combined with the character's unmatched global recognition, created a perfect environment for massive grading volume
Don't forget that Shadow's damage can trigger on every opponent each turn, further punishing players who favor instant speed spells
The heroic trigger usually gives the creature or the controlling player a benefit, like a token or a +1/+1 counter
From a value perspective, Smothering Tithe is the clear winner here, but honestly, most people would probably be happy with anyhting outside of the Command Tower
This is highly effective in competitive formats like Modern and Legacy, where many decks rely on low-cost spells like Lightning Bolt, Path to Exile, and Thoughtseize to get ahead