<PAGE>
Exhibit 99(d)
BlackRock Funds(SM)
POWER OF ATTORNEY
-----------------
Robert M. Hernandez, whose signature appears below, hereby constitutes
and appoints David R. Wilmerding, Jr., Raymond J. Clark, Anne Ackerley and Brian
P. Kindelan, and each of them, his true and lawful attorneys and agents, with
full power and authority of substitution and resubstitution, to do any and all
acts and things and to execute any and all instruments which said attorneys and
agents, or any of them, may deem necessary or advisable or which may be required
to enable BlackRock Funds(SM) (the "Company") to comply with the Investment
Company Act of 1940, as amended, and the Securities Act of 1933, as amended
(collectively, the "Acts"), and any rules, regulations or requirements of the
Securities and Exchange Commission in respect thereof, in connection with the
filing and effectiveness of any and all amendments (including post-effective
amendments) to the Company's Registration Statement on Form N-1A and any other
registration statements pursuant to said Acts, including specifically, but
without limiting the generality of the foregoing, the power and authority to
sign in the name and on behalf of the undersigned as a trustee and/or officer of
the Company any and all such amendments and registration statements filed with
the Securities and Exchange Commission under said Acts, and any other
instruments or documents related thereto, and the undersigned does hereby ratify
and confirm all that said attorneys and agents, or any of them, shall do or
cause to be done by virtue hereof.
/s/ Robert M. Hernandez
-----------------------
Robert M. Hernandez
Date: November 14, 2000