Happy Flower is a Common Relic that gives you 1 extra Energy every 3rd turn. The number near the relic shows how many turns have passed since last activation.
Interactions[]
The turn counter is conserved between rooms, so that means if you won the last battle in 2 turns, you will start with 1 extra energy in the next battle.
Trivia[]
This image and functionality of the relic are a reference to the Sunflower from the Plants vs. Zombies series.
This relic is a possible reference to the Paper Mario series, in which there is an equip-able badge of the same name with similar function.