speed decks can kill you in 6 turns reliably. so can FG decks. pulling this low defense creature + card to hand filling combo could be achieved reliably turn 3 (darkness mark + time towers + small deck). then what? the payoff is really small JUST LIKE CRUSADER. theres no quantum control, defense, cc, or anything without an elaborate and unlikely scheme and ton of cards.
heres another better idea. how about every time an opponent discards a card while its active, they take X damage. maybe that it copies itself to their hand during your turn too. dunno, ANY mechanic besides this watered down, weak, and utterly yugi-oh style of card creation would be refreshing. taking an obscure random card and creating a card that provides some small synergy is...terrible! two cards that work well together need to be game shattering, and moderately-very useful by themselves. examples!
oty + quint oty is powerful solo, quint is powerful with any number of cards (including tech cards like antimattering opponent creature). together, a big deal
shard of gratitude + permafrost SoG = lifeline unless dealt with. permafrost = same thing. together amazing
any druid + eternity druid can cc and mutate some cool stuff. eternity can stall and prolong games. together amazing
now look at these two. GotP = mid range attacker thats barely cheaper than a nymph, has far less defense, and an ability that doesnt match its element whatsoever and can only punish an opponent thats dead in the water anyways
nightmare = will deny one card draw and clog opponent hand maybe. not guaranteed to have any synergy with GotP due to no discard mechanics to control opponent hand (maximizing this specific effect)
the current wording is horrible. and @ the person that thinks that new cards that no one will play with is "an interesting addition to the game"...no no no. we get new cards very rarely and its a huge waste of developer and AI programming time and effort to do so. if the card ability punished discards, that would be cool (and probably not time at all, not like it should be now either). instead, its some wacky complicated "combo" with weak parts and an uncertain payoff.