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Since this deck has a lot of high cost spells, Shirvallah, the Tiger can also get discounted while you activate Arcane Tyrant with big spells. And a 7/5 lifesteal that deals 7 damage to ma minion seems to be good enough for the late game.

Any idea of this deck?

Quote from Kalkans >>

Immortal Prelate could be a great addition to this deck. Buffing it with Spikeridged Steed and summoning it again with Call to Arms [/card] could be a great play! I would also add  [card]Dinosize   since it can both help big spell synergy and also buff Immortal Prelate. Evenmore, you can add Primalfin Champion to buff him and play that spell again. These changes would look great in my opinion!

Adding Immortal Prelate into the deck seems to be a good idea since this deck has some great buff cards. The question is if you add Immortal Prelate into the deck, you need to give up Sunkeeper Tarim since it will set the stats of Immortal Prelate to 3/3 and remove the buffs. And its better to use Fungalmancer instead of Cobalt Scalebane to buff Immortal Prelate.

Good suggestions here. Also, if you're relying on Shirvallah, the Tiger, I'd also add Zola the Gorgon to the deck. The only thing better than 0-mana rush + lifesteal + divine shield is 2 of them for 3 mana. Maybe even Baleful Banker and Youthful Brewmaster for more bounce/replay shenanigans.

Quote from melheor >>

Good suggestions here. Also, if you're relying on Shirvallah, the Tiger, I'd also add Zola the Gorgon to the deck. The only thing better than 0-mana rush + lifesteal + divine shield is 2 of them for 3 mana. Maybe even Baleful Banker and Youthful Brewmaster for more bounce/replay shenanigans.

I think Zola the Gorgon works well with this deck, it can not only work with Shirvallah, the Tiger but also Arcane Tyrant for an extra 0 mana 4/4.

But which card in this deck should I replace?

I don't think a deck like this has enough punch to compete successfully. At least with the currently available card pool. However, the spirit of each class is supposed to synergise with its Loa, so I would think that they would have to go in a Shirvallah deck. However, I think Shirvallah will turn out to be a support card in some deck, where you don't build around it to the extent that it is reduced consistently to zero mana.

In OP's deck, Electrowright and Avenging Wrath are subpar cards, even if they have synergy with the tiger and big spells. Also, if this is built to be just a midrange deck, it would need more punch. Currently the only comeback mechanism seems to be Shirvallah, which is very late-game, with no equality pyromancer consecrate to regain a lost board.

Personally, I want to try out Shirvallah in a slow quest build. Recurrent Sound the Bells would help reduce Shirvallah's cost, and the deck has several bombs including Prelates, Galvadon, Lynessa, Tirion, Shirvallah, and Lich King [which I play in my current version]. Zola and Banker could also figure, although Banker is possibly too greedy. Even that would possibly not work, but let's see if we get some new cards that help.

Agreed, in fact maybe concentrating on replay value of spells (i.e. buffing Primalfin Champion, followed by buffing Immortal Prelate) might be a better way to go to synergize into Shirvallah than spreading oneself thin between spells and minions like the original deck. As you have also noted, it's also hard to leverage the Loa without knowing what bonuses spirits bring. I just theorycrafted my own alternative version that's more buff-based (https://www.hearthpwn.com/decks/1196269-theorycraft-infinity-paladin), but don't want to steal OPs thread.