Inalla, Archmage of Abracadabra Fidibus (EDH / Commander)

Combo 1 Bloodline Necromancer + Ashnod's Altar + Inalla, Archmage Ritualist
1.Start with Ashnod's Altar on the battlefield and Cast Bloodline Necromancer.
2.When Bloodline Necromancer ETBs, you'll have two triggers. One will be Bloodline Necromancer's trigger, and you can use it to target any creature in your graveyard. But, for purposes of this combo, it doesn't actually matter. You can still combo off with an empty graveyard. The second trigger will be Inalla's copy trigger.
3.After naming a target (if any) for Bloodline Necromancer's trigger, hold priority and respond to Inalla's trigger by sacrificing your Bloodline Necromancer to Ashnod's Altar, producing 2.
4.Using 1 of your Ashnod's Altar mana, pay for Inalla's trigger and make a copy of your Bloodline Necromancer. This works because the ability triggered when Necromancer was on the battlefield and the copy effect will use last known information to make the copy if Necromancer leaves play.
5.A copy of Bloodline Necromancer enters the battlefield and has haste. You get another Necromancer trigger, but not another Inalla trigger since this one is a token. With your copied Necromancer's trigger, target the original Necromancer that's now in your graveyard.
6.Your original Bloodline Necromancer enters the battlefield. You get another Necromancer trigger and another Inalla trigger and you've completed the loop back to step 1. In the process you've produced 1 and a copy of Bloodline Necromancer with haste. Repeat as many times as you want for an arbitrary amount of 3/2s with haste and an equal amount of colorless mana.
This combo can also be assembled starting with just a single Demonic Tutor in hand, although doing so is slow and will telegraph your intentions to opponents who know how it works.
1.Cast Demonic Tutor and get Archaeomancer
2.Cast Archaeomancer and use her ETB trigger to get back Demonic Tutor.
3.Demonic Tutor for Sidisi's Faithful .
4.Cast Sidisi's Faithful, exploiting itself, and use its ability to return Archaeomancer to your hand.
5.Cast Archaeomancer again, getting back Demonic Tutor.
6.Demonic Tutor for Bloodline Necromancer .
7.Cast Bloodline Necromancer and use his ETB trigger to return Sidisi's Faithful to the battlefield.
8.When Sidisi's Faithful ETBs, use Inalla's ability to make a copy of it.
9.Have both Sidisi's Faithfuls exploit themselves to return both Archaeomancer and Bloodline Necromancer to your hand.
10.Cast Archaeomancer again, getting back Demonic Tutor.
11.Demonic Tutor for Ashnod's Altar and cast it.
12.Cast Bloodline Necromancer, triggering Inalla. Now that you have Ashnod's Altar on the battlefield and Bloodline Necromancer has just entered the battlefield, you are in position to combo off.

Combo 2 Dualcaster Mage + Ghostly Flicker + Inalla, Archmage Ritualist
1.Cast Ghostly Flicker, targeting any two legal permanents you control. For purposes of this combo, what you target with the first Ghostly Flicker won't actually matter.
2.Holding priority, respond to your Ghostly Flicker by casting Dualcaster Mage.
3.Dualcaster Mage ETBs and you get both his trigger and Inalla's. Put Dualcaster Mage's trigger on top of the stack and Target Ghostly Flicker with it. You won't actually need to do anything with this specific Inalla Trigger, but it's good to call it out since you can still use it if you get stopped mid-combo.
4.With Inalla's trigger still on the stack, your Dualcaster Mage trigger will resolve. Copy Ghostly Flicker and use the copy to target Dualcaster Mage and a land that ETBs untapped.
5.The land you targeted will enter untapped along with Dualcaster Mage. You get a Dualcaster Mage trigger and an Inalla trigger. Target Ghostly Flicker with your Dualcaster Mage trigger as before.
6.Use the land that just reentered the battlefield to pay 1 to copy Dualcaster Mage with Inalla.
7.A token copy of Dualcaster Mage enters the battlefield with haste. Since it's a token, you only get one trigger: the Dualcaster Mage trigger. Target Ghostly Flicker with it.
8.Another copy of Ghostly Flicker is placed on the stack. Target your original Dualcaster Mage and the same land as before.
9.Your original Dualcaster Mage ETBs along with an untapped land, allowing you to continue paying the 1 required by Inalla's trigger to repeat the process for an arbitrarily large number of hasty 2/2s.
Like the Bloodline Necromancer combo, this one can also be assembled starting with just a single Demonic Tutor in hand.
1.Cast Demonic Tutor and get Archaeomancer
2.Cast Archaeomancer and use her ETB trigger to get back Demonic Tutor.
3.Cast Demonic Tutor again and get Ghostly Flicker.
4.Cast Ghostly Flicker, targeting Archaeomancer and something else. When Archaeomancer ETBs, use Inalla to make a copy of Archaeomancer. Use one Archaeomancer trigger to get back Demonic Tutor and another to get back Ghostly Flicker.
5.Cast Demonic Tutor and get Dualcaster Mage. You now have Dualcaster Mage and Ghostly flicker in hand.

Note that a similar combo exists using Naban, Dean of Iteration + Naru Meha, Master Wizard + Ghostly Flicker . However, that one only produces infinite mana of whatever colors your lands can produce.

Combo 3 Wanderwine Prophets + Inalla, Archmage Ritualist
1.Wanderwine Prophets ETBs and you get a "Champion a Merfolk" trigger and an Inalla trigger.
2.Put Inalla's trigger on top of the stack and pay 1 to make a copy of Wanderwine Prophets.
3.When the copy ETBs another "Champion a Merfolk" trigger occurs. Champion the original Wanderwine Prophets with the copy.
4.Since the copy has haste, swing with it and when it deals damage sacrifice it to take an extra turn.
5.When the copy dies the original returns and Inalla triggers again. Pay 1 to make another copy.
6.On your end step the copy will go away and the original Wanderwine Prophets will return again. Pay 1 yet again to make another copy. Since this copy entered the battlefield on your end step, it won't go away until the end step of your next turn.
7.On your extra turns, continue attacking with copied Wanderwine Prophets and paying 1 to make new copies when the original returns to the battlefield.

Combo 4 Timestream Navigator + Inalla, Archmage Ritualist
Getting Ascend is not difficult in this deck, which makes Timestream Navigator and any way to repeatedly bounce her into an infinite turn combo. You need access to 4+3B plus whatever the cost to bounce Navigator is, so it's not a cheap combo. The cheapest source of repeatable bounce is Crystal Shard , but Venser, Shaper Savant and Riptide Laboratory also work. Combining Ghostly Flicker with Archaeomancer also does the trick.
When Timestream Navigator enters the battlefield, you pay to make a copy with Inalla. Because this copy has haste, you sacrifice it to take an extra turn. You then bounce Navigator back to your hand (or flicker it on your end step or on your next turn) so that you can make another copy with Inalla on your next turn and sacrifice it in the same way.

Combo 5 Mistbind Clique + Inalla, Archmage Ritualist
1.Begin with Ashnod's Altar on the battlefield and cast Mistbind Clique in your opponent's upkeep.
2.Mistbind Clique ETBs and you have a "Champion a Faerie" trigger as well as an Inalla trigger.
3.Put Inalla's trigger on top of the stack and pay 1 to make a copy.
4.When the copy ETBs you have another "Champion a Faerie" trigger. Champion the original Mistbind Clique with the copy.
5.Tap all lands of the opponent whose upkeep it is.
6.On their end step, Inalla's delayed "exile it at the beginning of the next end step" trigger will occur. Respond to this trigger by sacrificing the copy to Ashnod's Altar, producing 2. The original Mistbind Clique will ETB again. Pay 1 of your 2 mana to create another copy.
7.On the next opponent's upkeep, repeat the process by sacrificing the copy for 2, and use 1 of that to make another copy when the original Mistbind Clique ETBs again.
8.Repeat for each opponent.

Nice Synergys

1. Sage of Fables + Glen Elendra Archmage
2. Trophy Mage + Crystal Shard or Riptide Laboratory
3. Riptide Laboratory + Sidisi's Faithful
4. Urza's Incubator + Venser, Shaper Savant
5. Archaeomancer on the battlefield + Ghostly Flicker plus any instant or sorcery