Springheart Nantuko [Modern Horizons 3]

Bestow {1}{G}
Enchanted creature gets +1/+1.
Landfall — Whenever a land enters the battlefield under your control, you may pay {1}{G} if Springheart Nantuko is attached to a creature you control. If you do, create a token that's a copy of that creature. If you didn't create a token this way, create a 1/1 green Insect creature token.