As long as they have the resources, a summoner can call upon these entities as many times as needed, making them invaluable in battle
The low-cost characters are fairly vanilla, but there are some more complicated effects in the bigger ones
If that spell would be put into your graveyard, exile it instead
It could even see play in a deck that just wants to cycle through its deck quickly
I still think Illumineer's Troves make a better item for collectors, but the Lore counter and dice are nice additions for those who lean more competitive - especially if you don't have items like this already
Morph, Space Goo Emerald is already considered one of the best colours to play if you like using Lorcanas Floodborn Shift mechanic, which is the ability to play character cards for cheaper by putting them on top of a character with the same name that you already have in play