A more convoluted version of this. For whatever reason, I’ve been thinking about this and came up with both Naya and Bant versions, both based on copying effects.

These are very casual. I don’t think these could be tuned enough to work in standard. On the other hand, I never do see the really great combos, so how would I know?

Bant Version

This time I’m going for Bant, because of these:

I’m not sure which way to go exactly, because of awkward mana. I’m guessing [scryfall]Mercurial Pretender[/scryfall] is the right way to go, though. Although, I could see any of these being the key to making this work.. and actually, since I like [scryfall]Artisan of Forms[/scryfall] more, I’ll go with that.

[deck]
[creatures]
4 Enduring Scalelord
4 Artisan of Forms
2 Dromoka, the Eternal
2 Anafenza, Kin-Tree Spirit
4 Courser of Kruphix
4 Sylvan Caryatid
[/creatures]
[spells]
4 Dromoka’s Command
4 Commune with the Gods
2 Scout the Borders
4 Citadel Siege
2 Feat of Resistance
[/spells]
[lands]
4 Mana Confluence
4 Temple of Plenty
4 Temple of Mystery
4 Temple of Enlightenment
2 Flooded Strand
2 Windswept Heath
1 Island
2 Plains
1 Forest
[/lands]
[/deck]

Six targeting effects might not be enough and we have the option to put some [scryfall]Treasure Cruise[/scryfall]s here as well. The benefit of the six targetting effects is that they each give +1/+1 counters as well, so they start the cascade nicely.

Naya Version

Naya, because red has its own copying effects. These are going to be harder to use, because they last only until end of turn, but it doesn’t matter, because this is all about one-shotting anyhow.

I like both [scryfall]Flamerush Rider[/scryfall] and [scryfall]Twinflame[/scryfall] here.

[deck]
[creatures]
4 Enduring Scalelord
1 Flamerush Rider
4 Sylvan Caryatid
4 Courser of Kruphix
2 Anafenza, Kin-Tree Spirit
2 Dromoka, the Eternal
[/creatures]
[spells]
4 Twinflame
4 Citadel Siege
4 Dromoka’s Command
3 Feat of Resistance
4 Commune with the Gods
[/spells]
[lands]
4 Mana Confluence
4 Temple of Plenty
4 Temple of Abandon
4 Temple of Triumph
1 Wooded Foothills
3 Windswept Heath
1 Mountain
2 Plains
1 Forest
[/lands]
[/deck]