Lotus Cobra

Landfall — Whenever a land you control enters, add one mana of any color.

Winding Constrictor

If one or more counters would be put on an artifact or creature you control, that many plus one of each of those kinds of counters are put on that permanent instead.
If you would get one or more counters, you get that many plus one of each of those kinds of counters instead.

Lorescale Coatl

Whenever you draw a card, put a +1/+1 counter on this creature.

Ambush Viper

Coiling Oracle

When this creature enters, reveal the top card of your library. If it's a land card, put it onto the battlefield. Otherwise, put that card into your hand.