Might of Old Krosa


Format Legality
Pre-release Legal
Noble Legal
Leviathan Legal
Magic Duels Legal
Canadian Highlander Legal
Vintage Legal
Modern Legal
Vanguard Legal
Legacy Legal
Archenemy Legal
Planechase Legal
Duel Commander Legal
Unformat Legal
Casual Legal
Commander / EDH Legal

Printings View all

Set Rarity
Modern Masters 2017 Edition (MM3) Uncommon
Time Spiral (TSP) Uncommon

Combos Browse all

Might of Old Krosa


Target creature gets +2/+2 until end of turn. If you cast this spell during your main phase, that creature gets +4/+4 until end of turn instead.

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Might of Old Krosa Discussion

LeaPlath on Ramping Infectious Disease

5 days ago

Primal Rage is pretty bad. Viridian Corrupter should stay in the sideboard. Larger Than Life is just bad, replace with Might of Old Krosa. Cut a forest. Play 4 Ponder, as it gives you so much more game.

Nitropotent on Even More Infect Help

6 days ago

Apostle's Blessing is a pretty good card for replacing Overrun if you want don't want too run a playset of Blossoming Defense or a playset of Might of Old Krosa. Apostle's Blessing is cheaper to buy for a playset.

Squirrelbacon on Ramping Infectious Disease

6 days ago

Take out all 4 Necropede and Overrun from the deck and put in 3 Blossoming Defense, 3 Might of Old Krosa and Viridian Corrupter to make the list a bit more streamlined. 16 creatures for infect is high as you need to ensure a critical mass of pump spells to make sure you can push through enough damage.

Also, I don't think that Pendelhaven is very pricey anymore due to it's recent A25 reprint, so that's probably worth a slot for the 2 Tranquil Thicket.

Anteus3575 on Even More Infect Help

6 days ago

you should add Blossoming Defense and/or Might of Old Krosa (playset of either or both) and/or Become Immense (but not a playset of this last one as it is not as efficient anymore without Gitaxian Probe )

FlashMuzzle on Good old fashioned infect shootout

1 week ago

Hey! This looks pretty good! I've looked at making my own Infect deck in the past, and I have found a few cards found that you might want to check out. (They are all Legacy legal) Maybe you have seen them, I don't know. Just thought I'd share. :)

Groundswell or Might of Old Krosa maybe could replace Titanic Growth? Just a slightly lower CMC for a little earlier of a heavy punch. (Hopefully before they get their blockers down) or maybe a Larger Than Life? Same CMC, but has Trample in case they got a cheap blocker down!

And then there is Mutagenic Growth, I know giving up life might sound counter-intuitive, but the possibility to hit for 11 infect Turn 2 (w/ a 1 CMC creature like Glistener Elf) and Might of Old Krosa, Groundswell (or any combination of 1 CMC buffs), and Mutagenic Growth is (obviously) pretty huge.

Duke.Fleed on Budget UG infect

2 weeks ago

Infect is definitely harder these days without Gitaxian Probe around to fill your graveyard and also check to see if the coast is clear. That being said, I think you've got a good budget start here.

Here are some of my suggestions for making the deck more consistent, while keeping in budget. 1st. I agree with the previous comment. Birds of Paradise would be a vital inclusion to your mainboard for all the reasons mentioned. One big difference between this list and the top tier lists is Noble Hierarch. This is obviously not a budget card but the ramp and the pump it provides is vital. If you like this deck and want to invest in it, those are the first cards I would look to buy/trade for.

2nd. Consolidate your pump spells, focusing more on protection rather than evasion. When attacking with an infect deck you often want to be reactionary. This is because you don't want to waste a card on a creature, just to have it removed. Often when I play against infect, they will attack and end up not pumping because they will win if I don't do anything. That is why, many times, if they have a removal spell, they will cast it on your second main phase or even on their turn. So this means: I recommend 4 Vines of Vastwood and 4 Blossoming Defense. Furthermore, Might of Old Krosa should absolutely be in your main deck!

3rd. Don't just listen to me. Go and watch infect videos and learn from the pros. They'll have insight that even I, the random guy on the internet, can not give you. Have fun with the deck, play it a bunch, and really pay attention to the games you loose and how you lost them. Knowing your weaknesses is the first step to fixing them.

Squirrelbacon on Simic Infect (Modern, Competitive)

1 month ago

Wild Defiance is a decent card for the deck, but it in by no means an auto include or something that the deck really wants. The reason that so many older infect lists ran Defiance was because, at the time, Lightning Bolt was the spot removal in the format (which is where the term 'bolt test' comes from). In today's modern format, Path to Exile and Fatal Push are just better removal you have to deal with in several decks.

The one thing that I will say all infect decks still need (other than creatures and pumps) is Dryad Arbor. Arbor beats so many decks and in the worse case can be a creature after a board wipe. Several decks get aggressive with life totals against infect because it "doesn't matter" and then you pump up a dork or an arbor and kill them after they tap out, thinking they are safe with no infect creatures in play... It won't happen a ton but when it does you feel real good. Arbor also beats Liliana of the Veil, which is still very relevent with BBE jund lists. Just put it in the main, it's better their than the side.

I know that it was brought up earlier, but the deck is a different list with 4 Noble Hierarch. I can't downplay the importance of this card and that one or two points of damage that it can push through is EXTREMELY relevant in most games. That's one or two extra draw steps for your opponent, and you only have so many resources to dump into your creatures. Using a Blossoming Defense or Apostle's Blessing on your turn or end steps feels really bad since that's a card that you need to push damage through, but that Noble Hierarch over those 2 turns makes up for the spells then through her exalted trigger.

Overall this list looks fine. A few changes are...

-1 Botanical Sanctum

-2 Ichorclaw Myr

-1 Viridian Corrupter

-2 Distortion Strike

+2 Noble Hierarch

+2 Jace, Vryn's Prodigy  Flip or Spellskite (I prefer baby Jace)

+1 Might of Old Krosa

+1 Dryad Arbor (main)

As a last note on Wild Defiance, if you want a card to try to help your creatures out more I think that Shapers' Sanctuary helps a lot. They target, you draw. You can get a replacement creature, a defensive spell, or even those spell pierces BEFORE their removal resolves and then hold priority to respond. I've had some good luck with this card lately, I think it's at least worth a thought!

Delta-117 on Simic Infect (Modern, Competitive)

1 month ago

Oops I missed that you somehow have 3 Distortion Strikes already.

I would further cut 2 Apostle's Blessing or 1 Apostle's Blessing and 1 Distortion Strike, for a Might of Old Krosa and Mutagenic Growth.

For your sideboard I would cut the Ghost Quarter for another Grafdigger's Cage.

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