MTG Salvation

They are still legendary.
205.4b An object’s supertype is independent of its card type and subtype, even though some supertypes are closely identified with specific card types. Changing an object’s card types or subtypes won’t change its supertypes. Changing an object’s supertypes won’t change its card types or subtypes. When an object gains or loses a supertype, it retains any other supertypes it had.

Why 4 colors. Dwarves are red and trample is a red keyword. Elves are green and reach is a green keyword. Even the damage ability is red.

You gain the specific varient. Hexproof from mono colored in your example.

Mostly right. Doubling power doesn't effect toughness to it would be a 12/8 with 8 counters on it.

With portal you are up 1 card the next turn. With ring you are up 3 cards the next turn. This ia way better.

Yes. If an effect sets your life total higher it does so by gaining that much life amd the converse is also true with loss of life.

Not really. You can stifle the trigger, but that stops it from removing the counter so it will trigger again the next turn.

Correct. Extra turns are created immediately following the current one and then return to normal order.

The first one for canopy. Artifacts and enchantments only have flying if they are also a creature (unless something weird happens).
The second one for fury charm.

So you attack with Xyris and deal three damage to an opp causing him to trigger and you both draw 3 cards. Because the draws happen simultaneously all the triggers happen at the same time and can be put on the stack in any order you (as the controller) choose so you can have Nadir Kraken's resolve last. If you do then Xyris will create 3 tokens first then you will have more tokens available for Gaea's Cradle when the kraken triggers go to resolve.

The instant spell is on the stack and then Gale, Waterdeep Prodigy triggers. This trigger is above the instant spell and resolves first allowing you to cast a sorcery. This sorcery goes on top of the stack (things are always added on top of everything else on the stack) and will resolve before the instant.

It's definitely fine, but there are a lot of mono red walkers already and like 5 of them are six mana chandras. Torch of Defiance and Jaya, Fiery negotiator are still the best two since 4 mana vs 6 is a big deal. Even for larger cubes how many more mono red walkers can we run?

I'm confused. Do lands on the battlefield have the abilities of other lands plus the ones not on the battlefield or do lands not on the field gain those abilities so like a swamp in the yard can tap for B if you have a creature

Have you ever heard of dredge?

It doesn't really seem better than sfm as far as power level. Sure if it had haste finding a hammer and swinging for 11 would be strong but not that strong.