Thank you for that long post!
I have a few questions:
Wouldn't be dawn charm better then Angelsong? Or is the cycling abilitie better then the counterspell?
Are their some more budget lands then those you chose?
Also i dont get the idea of the eidolon as it also makes it harder for me to clear your opponents minions, why is it worth it?
Why the combination of Blood SUn and Moon, wouldn't be three moons better?
I will take your deck as an ispiration but I need to make it more budget.
Edit: would be a Aurelia, the Warleader better then Gisela, Blade of Goldnight? Gisela is awesome with cards like boros charm but Aurelia, the Warleader is an awesome combination with nahiri.
Okay, so I'll try to answer as much as possible.
Dawn Charm is a good card. I would say that over
Angelsong it has more choices. However, it is mostly a matter of preference. Sometimes it is better to draw another card.
Budget lands, yes there are. I only used that deck as a competitive example. You don't have to use those cards. However, I would stay away from lands that come into play tapped, or colourless lands. (They will slow you down, preventing you from casting for a turn, or prevent you from having the right colour mana to cast spells.) The
Battlefield Forge is a good choice, it is what magic players call pain lands. As you take one damage to activate its ability.
Inspiring Vantage is a reasonable price, and perhaps check lands such as
Clifftop Retreat. The next set Dominaria will have it, so the price will drop.
Eidolon of Rhetoric is there because it will slow down your opponents. You will probably not play multiple spells per turn, because of the high mana cost of your angels. In a storm deck, a player casts multiple spells in a single turn in order to use
Grapeshot to deal lethal damage to you turn 3-4. Eidolon of the Rhetoric stops that tactic. Usually,
Eidolon of Rhetoric is seen in a sideboard, but can be useful in the mainboard for this deck.
If you want to wrath your opponent's tokens then you usually do so in your turn.
Flamebreak,
Anger of the Gods,
Sweltering Suns are all sorcery speed. You don't really need to cast multiple spells, just slow down the game until you can cast your creatures.
Honestly, you can use x3
Blood Moon (It is also expensive, but worth it.) I chose to add one
Blood Sun because when it comes into play you get to draw a card, so it gives you an extra card, whilst its ability stops players from using (fetch lands) like
Arid Mesa,
Marsh Flats,
Wooded Foothills. Also prevents them from animating lands like
Shambling Vent,
Wandering Fumarole. It's just extra diversity.
Aurelia, the Warleader is okay. But it isn't better than
Gisela, Blade of Goldnight. (You should ask other members to be sure)
You may get an extra combat phase, but you need to have multiple creatures on the field. Besides, there are many ways to stop Nahiri before she can use her ability.
For a 6 mana creature in Modern you should expect at least 5-8 dmg for the cost. 3/4 is too low, despite the multiple combat phases.
You can still include it in your deck, and test it. It does work well with
Nahiri, the Harbinger, but like I said, you need to protect yourself early game until you can use Nahiri's ultimate (-8)
Gisela, Blade of Goldnight is a 5/5 for 7 but her abilities make up for it. She also has great synergy with Nahiri, giving her haste, and if she deals combat damage that is 10 dmg (double) to a creature or player. (This includes other creatures and spells -
Boros Charm will deal 8 dmg to a player!) Gisela second ability will also limit damage dealt to you or creatures you control, which means that cards like
Lightning Bolt will do 2 dmg instead of 3 dmg. Which means, that your opponent will need to use targeted removal like
Murder to remove your creatures.
I hope that gives you some ideas!
Kind regards,
Mnemosyne.