magic the gathering dominaria united draft booster box 98 nonfoil cards) Dominaria United Draft Booster -

You can't summon this thing, because the ritual card doesn't say ritual summon, just special summon

While a bit of a borderline case with both of these cards being pretty playable I would say that Unsummon and Repulse are a reasonable example of this issue, Twitch and Twiddle would perhaps be a better example

Your opponent cannot target this card with card effects while it has Xyz Materials

But despite being Geminis and therefore being the slowest possible summons in the game, the archetype works rather well and is certainly quirky

I've seen a similar issue in Yu-Gi-Oh

Both the decks above back up their creatures with Standard's best removal and spells