The Deahrattle effect summons a random 7-cost minion. so I battled this 8 mana minion, and in one go he got twice Marsh Hydra how is that possible all serious this card plague Protodrake summons a random 7-cost minion. is broken from the very start since it is not a wild card.
bs…
That;s possible because Marsh Hydra is a 7-cost card and can hence be summoned by Plagued Protodrake.
If you want to complain about odds then (1) unlucky is not a bug; and (2) I think there are about 30 7-mana minions in Standard, so the odds of getting the same one twice in a row should be about 1 in 30. Ergo not bad odds at all.