Being able to grab the Not again Revenant in Stronghold , Saffi Eriksdotter in Time Spiral , and finally Hans Eriksson in Commander Legends (with an Ach
This infamously led to decks without creatures playing Umezawa's Jitte, an equipment that doesn't do anything without creatures, just to kill their opponent's copies of Umezawa's Jitte
Then when one of your dorks deals combat damage to a foe you can bounce and get two loyalties of Kaito this turn
You can wipe almost anything for 3 mana, ranging from a Damnation to a Plague Wind
The keyword defender didn't exist when they were first printed in Alpha
In its prime, Glimpse of Nature was a rather consistent turn 3-4 win deck in Modern that used a lot of cheap elves, Green Suns Zenith and Regal Force to win games in the blink of an eye