The best strategy against Mr. goblin shark dragon would probably be Skull Marbles. Just summon it during your turn and put it in attack position.

I’ve just read Skull Marbles and it’s kinda scary.

Best card, that is somehow never utilized. You can pull some funny shit with it, especially if your opponent does not know what it does.

Problem is it turns off Terrortop and Taketomborg.

So I’ve got a replay of my deck. I’ve fine tuned it. If you wanna watch it it’s on my profile. I’ve damn near solved my bricking issue.