This is most evident in its card draw spells: almost all the card draw in red is impulse draw, named for Act on Impulse
Essentially, if you have a full party with all four of these on the board, you can pay one white, one blue, and one black mana to give the Warrior lifelink, deathtouch, and make him unblockable (deathtouch and unblockable at the same time has no real use, but thats still OP to think about)
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There are 7 rare (less than 1%) and 3 mythic rare (less than 1%) web-slinger cards that can be found in this slot
Better yet, they are near the top of the list in almost every category
70 points