Gaia, Eternal World

Creatures with no rules text in their text box count as cards that have no abilities even when receiving an ability as part of a blanket effect.
Creatures with no abilities that you control get +1/+1 for each other creature you control with no abilities.
"Finally, another Muraganda Petroglyphs, but better and making it easier to get the bonus! Bear tribal time!" --Everybody who cares