Balefire Dragon and Incinerator of the Guilty are two I love to Blitz in Henzie, and they may be good here, too
I have two basic rules for whether or not Im going to keep a deck I own
The Urzas Incubator effect is a boon to tribal decks, so much so that weve seen various tribal matters equivalents printed over the years, like Starnheim Aspirant
Collect evidence, followed by a number, is a cost that you pay by exiling any number of cards from your graveyard with total mana value equal to that number or greater
Chip N Dale Recovery Rangers has the Flotsam/Jetsam Shift gimmick, but that high cost needs a deck build to reduce cost or control the board
Both of them give you a delightful bonus for attacking and hitting with a creature with 7+ power, and they give you value in different ways