50 Power Double OTK

Inspired mainly by https://eternalwarcry.com/decks/details/sCBfoOYUywU/50-power-bad-news and https://eternalwarcry.com/decks/details/O-FiK47yfPI/bad-news-infinite-combo - there are also more decks that don't use 50 power like this that should receive credit, like https://eternalwarcry.com/decks/details/6ESdf87jXVY/my-turn-forever-otk

There's an alternative to 25 power just for combo decks; going 50 power, which is the max for a 75 card deck. This takes advantage of the guaranteed non-power cards in the first draw and mulligan, giving you a lot of consistency for your combo pieces at least in your starting hand, but at the risk of likely never drawing a non-power every turn, so keeping 2 or 3 power hands may even be optimal.

This is more of a fun deck than a competitive deck.

TL;DR (other decks go deeper:)
Combos: There are 2 combos in the deck that kill the opponent right away, one with Herald+Spymaster+Gunsmith with a Mirror Image in the void, and one with Herald+Spymaster with Bad News in the void.

Herald's Song: 1-of because every other card is already perfect with the combo. I removed Calderan Gunsmith for it, but other choices, like maybe Mirror Image would be better. This can also function as additional discard for Mirror Image and Bad News.

Whispering Wind: Prioritize to draw but not too much - decks that know what you're doing will probably remove this and make you sad. If you can get it going, discard Herald's Song copies, Mirror Image, Bad News, extra power and combo duplicates if you have to.

Kindle: Fire's ramp, and probably the best use case for the card. +5 power for free if Herald plays it as well. You really want to make sure you have the influence (casting Herald costs PP, casting Bad News costs FF).

Mirror Image: Usually discard bait for Whispering Wind since duplicating something is of niche territory, but maybe you'd want to duplicate Whispering Wind itself just for safety. You can also just duplicate Gunsmith if you used the first to get rid of an Aegis.

Cabal Spymaster: Important combo piece which lets the infiltrates trigger infinitely. It's also a good defender - rather, a good defense threat, since if your opponent knows the matchup they'll bluff by attacking with everything anyway (because keeping the combo alive is important).

Calderan Gunsmith: Infiltrates trigger by non-combat damage. This is unfortunately the cheapest source for it.

West-Wind Herald: Lets you play a spell. This is Mirror Image on the Calderan Gunsmith for combo #1, and Bad News on the board for #2. It may also be Kindle to play the pieces from hand, or Mirror Image on itself to create an army of West-Wind Heralds in case you need to stall. The copies will have a refreshed Infiltrate.

Bad News: It's the highest cost card in the deck, so discarding any 5-cost has a 100% chance of getting it. You don't need to actually play this from your hand (it just needs to be in the void), but try to get 2 Fire just in case. (Alternatively, you could even hide that you're playing Fire at all until it's too late.)

The power base of this deck is kind of clumsy - I really don't know if this is the right amount. (Shadow is literally only necessary for Spymaster, and Fire influence is not even necessary in combo #2.)

Other cards are possible (Ghostform was in one of the decks and Vara's Intervention is likely better?)