I think so, especially if the mechanic is now evergreen as Gavin says
For details on when these events will be held and what promo cards will be available, contact your local game store
Ron Spencers art on Might of Oaks stands out as extra cute among squirrel cards thanks to the sheer scale of the squirrel in the art, as well as the funny flavor text
Suppose something is dominating the board, like a nasty Stasis, that you need to destroy
Adding blue gives a ton more interaction (mostly bouncing and countermagic) and the overwhelming majority of the sets card selection, which is usually enough to ensure inevitability so long as you can keep playing interaction to stay alive through the early and midgame
Use Energy recovery like Superior Energy Retrieval to keep Water Energy in hand so you can consistently attach all three and maximize the healing