Maybe they could make it so the tool tips fade after a couple of seconds.
For instance, if I'm spamming DD's or specific arrow shots, they take up way too much screen space. It wouldn't be so bad if, when your mouse is hovering over a particular spell or shot to repeatedly use it, that the tool tips disappear once you've had a chance to look at it and see what it has to offer.
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How do you get a girl to sound like a dolphin?!
Bend her over, try to stick it in her bum and listen to her go “eh eh, eh eh.â€