DDR 

I really agree with using "this" in most cases. Cards with backup already do this since it is intended to let other things use their abilities. It just saves so much space. Small nitpick on the first point: if it says something along the lines of "a card named ____", such as the ability on Shadowborn Apostles, then it refers to any card with that name.

Would you be able to elaborate, I'm v confused

​@@victhefoxygamer_6180 The 2 Sunfrill Imitators' ability will make it a copy of Kalamax except they have the name "Sunfrill Imitator" and with their own ability added on top of Kalamax's. This means that they both have the typing "Legendary Creature - Elemental Dinosaur" and have the name "Sunfrill Imitator". The legend rule is a rule in the game where if two or more legendary permanents (controlled by the same player) share the same name, you choose one to keep and the rest are sent to the graveyard (this is a state based action). As there are two legendary "Sunfrill Imitator" the legend rule applies here so you choose one Sunfrill Imitator to keep and send the other to the graveyard. Mirror Box/ Mirror Gallery are cards which have "the legend rule doesn't apply" so in this case it's fine to have 2 or more legendary creatures which share the same name. As I'm not a judge I might have missed some technical wordings but I think this gets the idea across.

The "Legend Rule" says that if you control two or more legendary permanents with the same name, you must place all but one of them into the graveyard. Kalamax is legendary, so Sunfrill Imitator will become legendary as it copies it. If you have both Sunfrill Imitators copy Kalamax, then you have two legendary creatures named Sunfrill Imitator, so you have to graveyard one of them.

Correct.

In fact, I believe the deck Kalamax came in had other ways to copy spells and other payoffs for copying spells as well, and with a few small upgrades you can do some easy infinites (if you cast any number of "copy target spell" effects as your first instant in a turn when Kalamax is tapped, you can have the copy target the original, creating another copy you can point at the original, ad infinitum, giving Kalamax a +1/+1 counter each time. The final copy can target whatever spell the original is targeting to break the loop.

Yeah. Importantly, it is worded that way so it can remember who it has hit even if it dies and comes back (perhaps since it's a commander).

It's likely this is your response. He tweaks the questions to fit in side lessons.

As cool as that would be, it would also make the card significantly harder to read. Not really worth it imho.

Perhaps a mild arena tap, not a proper 90° tap. That should still be easy to read.

I´d like to tink, that it´s about vanity of the creature :)

"this creature" would still work for the same reason "cardname" does. Honestly I think that they probably should make that change at some point since it would save so much room. Many cards with backup already use "this creature" since the mechanic lets them loan out abilities to other things.

Thank you. That was my initial thought but my friend disagreed. I appreciate the effort to tell me thank you!

Yes, followed by no. The first instant you cast is still "your first instant" and will trigger both abilities accordingly. From the same ruling at 1:57, two Predator Oozes would not trigger each other's ability through their own damage. They would have to read "Whenever a creature dealt damage by a creature named Predator Ooze this turn dies..." In addition to their attack trigger, each ooze would end up with two +1/+1 counters.

They have gone back and forth over the years about whether indestructible is a keyword ability that goes on creatures, or not. If you check the Oracle rules then you will see that it is now a keyword. Unblockable is something they went the other way on so rather than saying "X is unblocked" they say "X can't be blocked". The difference is that with the old wording boros charm said "Permanents you control are indestructible this turn" and would affect things played after it since it doesn't give the ability to the permanents, but was an independent continuous affect. The new wording, "permanents you control gain indestructible until end of turn" gives the ability indestructible to each of your permanents meaning that if you played a land after it, it would not have indestructible. The new wording also means that Dress Down would remove indestructible if you cast it after the ability resolves. Sorry if that was a bit incomprehensive. I wasn't playing (at least at the level where I followed rules updates) back when the change was made so this is mostly what I heard somewhere later. TLDR: the outdated way it's worded means the ability makes it so that it can't be destroyed this turn. The updated wording gives it the ability indestructible which has the same effect.

Hamza's cost reduction is locked in by the time you actually start removing counters to pay for the spell. Dargo and Stinkdrinker Daredevil work the same way