You might get 8 on really rare occasions, but mostly you're going to have one extra copy of this thing and that doesn't really move the needle on an inefficient creature
Akoum Hellhound Avenger of Zendikar Brushfire Elemental Cosi's Ravager Embodiment of Fury Embodiment of Insight Geode Rager Geyser Glider Geyserfield Stalker Glyph Elemental Greensleeves, Maro-Sorcerer Grove Rumbler Mossborn Hydra Omnath, Locus of Creation Omnath, Locus of Rage Omnath, Locus of the Roil Phylath, World Sculptor Remnant Elemental Roil Elemental Tideforce Elemental Undergrowth Champion Valakut Predator Wave-Wing Elemental
You need colorless mana (of course) to activate the ability, and your creature comes back tapped, but its certainly a valid option
"Pokemon Sun/Moon Devs on Legendaries, Pokemon Go, and the Origin of Pikachu"
This is not a linear market