EX-era packs (Ruby & Sapphire onwards) are also 9 cards but add a guaranteed reverse-holo slot and a roughly 1-in-6 chance at a Pokemon-ex
For example, Somnophore is a four mana Blue 2/2 that reads, Whenever Somnophore deals damage to a player, tap target creature that player controls
I just worry with how tightly the back flap will be held up against the card
Curse of Dragon only requires one Tribute summon to get it to the field so if you need a strong monster out as quickly as possible, this can help at least and as mentioned earlier, Dragons have a lot of support to make them even stronger so Curse of Dragon is a strong Dragon monster you can send out and power up quicker than some other more powerful beatsticks
Shock Nerfing Lightning Bolt by 1 less damage rather than 1 more mana makes Shock more consistently useful than the Incinerate versions
Ive seen it already compared to Winota as a powered down version, so there is probably a number of players who will be interested in this kind of effect