Bustling City

Whenever you cast a spell, you may create a 1/1 white Human creature token with lifelink, or a 1/1 red Robot artifact creature token with haste.

Whenever you explore Bustling City, create a Supplies token. (It's a colourless resource with 'At
the beginning of your turn, you may sacrifice this to ignore the effects of your Environment until the beginning of your next turn.')