Effect updates and description changes can be seen here.Pyrope's ability makes it useful, especially in large numbers, when wishing to surprise the enemy with damage that turn. This card automatically deals 3 damage to the enemies' HP at the end of your turn, including the turn it is placed, even through Igloo.
With its 5 health it will typically last at least two attacks and become a target for the enemy as damage can quickly accumulate with multiple of these on the field at once. Placing this alongside a Taunt card is suggested.
Increasing its attack is also a suggestion to protect it from Muffet's Pet, or at least from Madjick. On the contrary, you can also use Madjick yourself in order to make Pyrope a glass cannon, after buffing it in some way.