not supported
blaze commando
auto=@damaged(creature,player) from(instant,sorcery|mystack):token(Soldier,Creature Soldier,1/1,red,white,haste)*2
text=
Whenever an instant or sorcery spell you control deals damage, put two 1/1 red and white Soldier creature tokens with haste onto the battlefield.
read the red carefully.
4/15/2013 Blaze Commando’s ability triggers each time an instant or sorcery spell you control deals damage (or, put another way, the number of times the word “deals” appears in its instructions), no matter how much damage is dealt or how many players or permanents are dealt damage. For example, if you cast Punish the Enemy and it “deals 3 damage to target player and 3 damage to target creature,” Blaze Commando’s ability will trigger once and you’ll get two Soldier tokens.
its supposed to trigger only one time even if 30 creatures and 2 players were damaged. that code would trigger once per creature or player
borderline
Blast of Genius
this is great

you can play around with "mystored" variable usage, look it up in the mtg.txt to see how its used.
[card]
name=Debt to the Deathless
auto=@lifeloss(opponent):life:thatmuch controller
auto=life:-x opponent
auto=life:-x opponent
text=Each opponent loses two times X life. You gain life equal to the life lost this way.
mana={X}{W}{W}{B}{B}
type=Sorcery
[/card]
the doubling really needs a variable keyword, this would be so easy to add so give me a day and this would will be fully supported.
4/15/2013 Pyrewild Shaman’s last ability triggers only once for each time combat damage is dealt,
no matter how many creatures are dealing damage at that time.
autograveyard=@combatdamaged(player) from(creature|mybattlefield):may name(pay ability) transforms((,newability[{3}:moveto(myhand)])) forever
the may pay given here would be there even after you decided not to actually pay for it, this would also make this borderline
The "@evolve" trigger does not actually work so coding Renegade Krasis would either requiring making that particular trigger work
or to figure out how to compare Renegade's P/T against new creatures. please dont. that translate into "lets make a workaround".
there is no @evolve trigger yet, you could wait until there is a trigger for it

that is an option too. this will depend on how popular that card becomes as it is a unique card. vangevine <---uniques get added from time to time, depending on how much people request it.