mtg best draw cards edh Top Ten Black Card Spells of All Time The Top 50 Card Drawing

That locked out all but the most well-off or lucky players

Narset, Jeskai Waymaster, is a big card for spell-heavy decks, as it allows you to discard whatever remains in your hand and draw cards equal to the number of spells you've cast that turn

Ulrich of the Krallenhorde / Ulrich, Uncontested Alpha Ulrich of the Krallenhorde works like Tolsimir, Friend to Wolves and Tovolar's Huntmaster

However, I think what Ive described above leads you down the right path and I intend on considering cards this way for the first week.

Any "enters" abilities of the copied creature will trigger when Mockingbird enters

They either create energy or let you pay energy for some effect (they often do both)