Drelnoch

The design problem here is the one that gives every "punish the blocker" creature its strange shape: the trigger only fires when the opponent chooses to engage, which hands the decision to the person with no reason to make it. Block the Yeti and its controller draws two cards; let it through and eat three damage a turn. The dilemma is real, but it only exists when the defender has creatures to commit, and even then it points the wrong way. The math the card wants is for the opponent to either take the beating or hand over card advantage, but the opponent has cheaper outs than either. Removal answers it before combat is ever declared, and a burn spell kills it on the swing without ever feeding the trigger. The genuine cost of blocking (two cards) is the entire point of the design, and yet a five-mana body with no evasion and no protection rarely lives long enough to force the question. That puts it in the lineage of conditional card-advantage engines stapled to a combatant, where the value sits in the choice you offer rather than in any card you reliably draw. The trouble with that whole school is the conditionality runs the wrong direction: you are trying to draw two off an opponent who controls whether you draw at all, and an unprotected body at this cost gives them every reason to decline.