yugioh all token cards Yu-Gi-Oh! Slime - OP19-EN029 - OTS Tournament Pack 19 Age Group Monster Token | Yu-Gi-Oh! Wiki

Cinderace is a fire-rabbit

Collector Booster packs for Bloomburrow can be picked up as a box of 12 for $279.99 from Amazon, GameStop, and Best Buy

Absolutely, very very powerful

One-Hit Polykill: If Number 14: Greedy Sarameya destroys an opponent's monster by battle, its controller can detach an Xyz Material from it as a cost to destroy all monsters the opponent controls whose current ATK are equal to or less than the destroyed monster's original ATK in the Graveyard

So they can be reduced by Ugin, the Ineffable, countered by cards like Counterspell and Essence Scatter, and also trigger abilities like Animar, Soul of Elements and Beast Whisperer