Lethal Scheme Four mana to destroy a creature is okay, but not great

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Sure it costs one more mana and leaves a creature behind, but what's a Manifest token when you probably just dealt with a huge threat, even an indestructible one
a guide to the expansion set
Spright Starter simply lets you special summon 1 Spright monster from your deck, but it then locks you into level, rank, and link-2 monsters for the rest of the turn