First, the new D’Angelo Rulings for the cards (copied from Crystalkeep 6.6.2001):
[please pay attention to the emphasis.]

The Rack
Color=Artifact Type=Artifact Cost=1 AQ(U3)/R4(U1)
Text(4th+errata): As ~this~ comes into play, choose target opponent. ; At the beginning of the chosen player's draw step, ~this~ deals X damage to that player where X is the number of cards in his or her hand fewer than three. [Oracle 99/09/03]

- You choose one opposing player as this card enters play and it only affects that one player. This target is not changed even if this card changes controllers. It becomes useless but stays in play if the target player leaves play. [Jordan 01/02/13] See Rule M.1.3.
- The player makes their normal draw during their draw step before this card's ability resolves. [D'Angelo 01/05/19] See Rule P.7.1.
- Amount of damage is determined when effect is resolved and not when it is announced. [D'Angelo 95/10/05]
- Extended tournaments (see Rule D.15) have banned this card since 99/10/01.


Black Vise
Color=Artifact Type=Artifact Cost=1 ABUR4(U1)
Text(4th+errata): As ~this~ comes into play, choose target opponent. ; At the beginning of chosen player's draw step, ~this~ deals X damage to that player, where X is the number of cards greater than four in his or her hand. [Oracle 99/09/03]

- You choose one opposing player as it comes into play and it only affects that one player. This target is not changed even if this card changes controllers. It becomes useless but stays in play if the target player leaves play. [D'Angelo 00/03/03] See Rule M.1.3.
- Amount of damage is determined when the effect is resolved and not when it is announced. [D'Angelo 95/10/05]
- The player makes their normal draw during their draw step before this card's ability resolves. [D'Angelo 01/05/19] See Rule P.7.1.
- If you take control of a Vise that targets you, you continue to take damage from it. - - The "target opponent" check is only made when it is cast and is not checked by the effect again after it is in play. [D'Angelo 96/01/07]
- Type 1 tournaments (see Rule D.13) have restricted this card since 97/07/01. It was previously banned from 96/02/01 to 96/04/01.
- Type 1.5 tournaments (see Rule D.14) have banned this card since 96/02/01.
- Extended tournaments (see Rule D.15) have always banned this card.
- Standard (Type 2) tournaments (see Rule D.16) have banned this card since 97/01/01. It was previously restricted from 96/02/01 to 97/01/01.


And the rules addition that made it all necessary:

P.7 - Draw Step
+ P.7.1 - The game has a "built-in" triggered ability (see Rule A.4) for this
step that reads: "At the beginning of your draw step, draw a card." This
places a "draw a card" ability on the stack (see Rule T.2) on top of
any other abilities that trigger on the start of this step. No player
controls this ability and it is placed after all ones controlled by
players have been placed. [Rules Team 01/05/01]

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Now, I’m surprised that no one has discussed this, to my knowledge, in this Mill. Take a moment and consider the modern uses for these two cards and how this rules change effects them:

The Rack: now sucks. Almost unplayable. The most you’re going to get out of it 99% of the time is 2 damage (opponent starting a turn with zero cards, drawing, then The Rack triggers for 2). This card was not amazing before this ruling. Now it’s seriously junk.

Deck impacts: Does POX even run this anymore? (This is not a rhetorical question: I’m seriously asking the community for an answer.) I use The Rack in my Chains deck, which is not hit quite as hard by this ruling… but “popular” POX decks don’t hinder the opponent’s draw step.


Black Vise: now even more powerful! Four damage if your opponent has a full hand!?!? This card is now nearly a “W” by itself versus control. If the control player cannot access their disenchant effect(s) by turn 5’s upkeep, the game is over. That’s without the Vise-controller doing anything else! Even if the Visee manages to get two cards out of their hand on the first turn (ie. Mox), they’re still down to 10 at their 3rd draw!

Deck impacts: any deck that was already using this card is happy, but are there more decks, now, that will run this due to its increased brokenness?

Examples:

Game scenarios (opponent plays) for a Goldfish facing a first-turn vise:

Turn   Life With   Life With 
       “Old” Vise  “New” Vise! 
1      17          16 
2      14          12 
3      11          8 
4      8           4 
5      5           DEAD 
6      2           DEAD

Turn   Life With      Life With 
       “Old” Vise     “New” Vise! 
1      17             16 
2      15             13 
3      13             10 
4      11             7 
5      9              4 
6      7              1 
7      5              DEAD 
8      3              DEAD 
9      1              DEAD