Text (AN+errata): {Tap}: Add {1} to your mana pool. ; {Tap}: Draw a card. Activate this ability only if you have exactly seven cards in hand. [Oracle 2009/07/08]
You can tap this card before you draw during your draw step, and still draw as normal. [Arab FAQ 1994/01/05]
You may tap multiples of these in response to each other because the requirement for 7 cards is checked only at the time the ability is announced and not again when it resolves. [Aahz 1994/06/22]
Vintage tournaments (see Rule 911) have restricted this card since 1994/05/02.
Legacy tournaments (see Rule 912) have always banned this card.
Extended tournaments (see Rule 913) have always banned this card.
Standard (Type 2) tournaments (see Rule 914) have always banned this card, since it is not part of the environment.
