Well, I'll just speak to the Zombies and Beasts matchups.
versus Beasts, the Rifts go away. They're simply not going to be used in a deck that absolutely has to hardcast its cycling cards just to survive the Beasts match-up. In their place I bring in 4 Insurrections, straight-up. Rather simple boarding, on my part. Having four MAY clog hand, but so what? Having four increases the odds of drawing one, and playing them in consectutive turns it sweet, if the first one doesn't do the job. OK, maybe 3 is fine in such a slow deck, but I'm paranoid.
Ravenous Baloth? I HOPE they sac ALL their beasts to it, and gain mega life, losing all their critters in the process. Then, we'll commence the flying beatdown and kill them before they can build back up.
They won't, though, they still want to win, and I think the better players will sac just enough to take the hits that won't kill them and try to kill you next turn. I said "try." You'll get to mega mana fairly fast on the road to annoying them, and should have quite a bit on the table as you string the game out, which is pretty much your friggin' job, right? What I mean is: Enough to hardcast a Blessing on their turn AFTER insurrecting. You get to 12 mana quite fast you know, even without cycling.
So, for THIS mini-tourney (MT1), I'll sideboard......
+4 Lightning Rift -2 Wipe Clean
+ 2 Akroma's Vengeance +2 Lay Waste +2 Circle of Solace,
and +2 Vengeance +4 Insurrections for MT No. 2
Jarrod Bright, in a NOT-Premium Brainburst article on Vegetable Decks, gave me the idea of Insurrection. I like to give credit where credit is due.
I was DUMB to take out the Starstorms. Even if they spot remove an Elf, that's cool, and Primoc is a royal pain. Hopefully Knight Train will have better luck now.
Back to Baloth vs Insurrection:
Hopefully you won't let them keep a Baloth. Without Baloth, they should die to Insurrection. You have the olde Shock/Wipe Clean combo, Vengeance, 6cc Starstorms (withOUT Crawler in play). You have the tools, you Red/White controllish beatstick, you.
Zombies is next, so:
I'll be bringing in Cruel Revivals, staight-up. I was dumb not to do so before. Biddings are... feh, not spectacular here. So let me think, you have .... 3 Discipiles, and Circles for Zombies, and Vengeances. What to take out?
I think Rift is huge vs Zombies game 1, but I'll probaly take out my 1ccs for the Cruels and additional CoD's for your Knights and Clerics, so....I see why you say to take out the rifts. You have shocks and storms for the undead chief, so:
-4 Rift -2 Wipe Cleans (though maybe not the wipe cleans, CoD's are cruel), so just -4 Lightnng Rift
+3 Disciple of Grace +1 Akroma's Vengeance
This is a tough boarding problem, actually. You have more you'd like to put in than you'd like to take out, but why should today be unlike any other day and why should we be happy?
Should be a great match.
I only want Sulfuric Vortex in one deck, Goblins, for only one other deck, Slide, and then only to back up Stabilizer. But that's just me, I guess.
PS Don't worry about Wellwisher. The elf deck just dies to your cards. Believe.