Spontaneous Generation

Domain — Create a 1/1 green Saproling creature token for each basic land type among lands you control.

Create a 1/2 green Spider creature token with reach for each creature card in your graveyard.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Create a 1/1 green Elf Warrior creature token for each Elf you control.

You may cast this spell as though it had flash if you pay more to cast it. (You may cast it any time you could cast an instant.)

Create a 1/1 green Saproling creature token for each creature you control.

Create a 1/1 black and green Worm creature token for each land card in your graveyard.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Choose a card type. Target opponent reveals their hand. Create two 1/1 green Saproling creature tokens for each card of the chosen type revealed this way. (Artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery are card types.)