The power/toughness ability feels almost irrelevant compared to the consistent extra draw
Theres no reason for any Ruby/Sapphire deck not to have four Pawpsicle especially one that can combo with it and Sail The Azurite Sea Stabbington Brother Without a Patch isnt worth it without a different brother, and there are better Rush cards in Ruby
Coveted Jewel There are more busted cards I can copy with Mishra, Eminent One, but if I do that once with Coveted Jewel, I draw six cards for neutral mana in a deck that usually has a Slobad, Iron Goblin effect lurking around
Some counterspells and discard spells, like Test of Talents, Dispossess, and Haunting Echoes let you target specific cards as part of the resolution
Some decks will still prefer the 1-drop, but this has combat stats, sacs artifacts, and surveils instead of scrying, which is all major upsides on a free sac outlet