pokemon sun & moon cosmic eclipse booster box TCG: Pokemon: Sun & Moon -

However, if you exile cards with a total mana value of eight or more from your graveyard, you can find a creature instead

It will give some value, more than a card without a discard effect, but counting the Rat as an equal value outlet to an actually good one is misleading and will result in weaker decks

Morgue Toad Its a bit of a stretch to even mention Morgue Toad, but maybe theres a world where you use this as a ritual for a big leap in mana

You might also find your Cat Cleric dreams fulfilled with Kemba, Kha Regent

Then, once someone plays a fourth spell in a turn, the creature flips into the obnoxiously powerful Erayo's Essence, a legendary enchantment that counters the first spell played by each opponent each turn