You need to follow up with at least three creatures before this hits ritual territory so its more of a setup piece than a full-fledged ritual
Rofellos, Llanowar Emissary The history of Rofellos is long and winding, being banned, unbanned, and then re-banned, but its major significance comes from its role in the creation of the commander tax
Explore puts +1/+1 counters on your creatures, so thats very good with proliferate and cards like Branching Evolution
Finality counters keep the card from being too recursive or broken, and its expensive to get into play, but the effect is worth having around in typal decks that focus on larger creatures, like giants or angels
The change to Floodborn is unpredictable, but the seeds are already present in the Storyborn or Dreamborn glimmer. Rise of the Floodborn will be released in local game stores on November 17 and mass market retailer stores on December 1.