1. Doomsday Combo
Requirements:
- Aminatou on board
- Doomsday
- (First line) / (Second line) open
- At least one (First line) / two (Second line) throwaway cards in hand
- Zero (First line) / One (Second line) devotion to Blue
Execution:
First line
- Cast Doomsday for the following pile: Predict - Thassa's Oracle - Protection card (E.g. Fierce Guardianship) - Any Card - Any Card
- Activate Aminatou's +1, getting Predict and putting back a card you had in hand
- Cast Predict, naming the card you put back and drawing Thassa's Oracle and Fierce Guardianship
- Cast Thassa's Oracle
- If needed, use the Protection card (generally a counterspell, but you could also put in artifact removal in case of a Torpor Orb, or any other card that would threaten your win)
Second line
- Cast Doomsday for the following pile: Brainstorm - Thassa's Oracle - Protection card (E.g. Fierce Guardianship) - Any Card - Any Card
- Activate Aminatou's +1, getting Brainstorm and putting back another card you have in hand
- Cast Brainstorm, drawing the card you put back, Thassa's Oracle and Fierce Guardianship and putting back two other cards you have in hand
- Cast Thassa's Oracle
- If needed, use the Protection card (generally a counterspell, but you could also put in artifact removal in case of a Torpor Orb, or any other card that would threaten your win)
2. Blink combo
Requirements:
- Any two of the following: Aminatou on board / Felidar Guardian / Spark Double
- Varying manacost open, depending on the outlet (NOTE: You can blink a mana source (land/rock) with Aminatou first, to reduce it, as the combo doesn't require an activation from her)
Execution:
- Assemble infinite blink -> Any two of: Aminatou, the Fateshifter / Felidar Guardian / Spark Double
- Have a blink outlet -> Any one of: Altar of the Brood / Oath of Teferi / The Chain Veil / Panharmonicon / Corpse Knight (IMPORTANT: Depending on whether creatures/PWs/both are involved in the infinite blink combo, you may need a different outlet, see below.)
- By assembling infinite blink, you can repeatedly blink one piece of the combo with another. This, however, does nothing by itself. You'll need an outlet to turn this infinite into something meaningful.
- After having achieved infinite blink, you can use one of the outlets to turn it into a meaningful infinite payoff:
- Altar of the Brood: This gets infinite mill on opponents regardless whether PWs or creatures are involved. If the opponent has an Eldrazi Titan, add Rest in Peace of Leyline of the Void.
- Oath of Teferi / The Chain Veil: There has to be a PW involved in the infinite blink. You can infinitely blink any permanents with this (by doubling up on Aminatou's -1), achieving infinite mana / infinite ETBs of any permanents.
- Panharmonicon / Corpse Knight: There has to be a creature involved in the infinite blink. You can infinitely blink any permanents with this (by doubling up on Felidar Guardian's ETB), achieving infinite mana / infinite ETBs of any permanents.
3. Tezzeret Rings Combo
Requirements:
- Aminatou on board with at least 2 loyalty
- Tezzeret, the Seeker
- open
Execution:
- Get Aminatou and Tezzeret on the field
- Activate Tezzeret's -X for 3, fetch Rings of Brighthearth
- Activate Aminatou's -1, resetting Tezzeret
- Activate Tezzeret's -X for 3, HOLD PRIORITY
- Copy Tezzeret's activated ability with Rings of Brighthearth (2 mana)
- Fetch Basalt Monolith and Sensei's Divining Top with the two Tezzeret activations
- Activate Basalt Monolith's first ability
- Activate Basalt Monolith's second ability, HOLD PRIORITY
- Copy Basalt Monolith's second ability with Rings of Brighthearth (2 mana)
- Let the first untap ability on the trigger resolve
- Activate Basalt Monolith's first ability BEFORE the other second ability on the stack resolves
- Let the second untap ability on the trigger resolve
- Repeat steps 7-12, netting you 6 mana while using 5 each time (achieve infinite colorless mana)
- Activate Divining Top's second ability, HOLD PRIORITY
- Copy Divining Top's second ability with Rings of Brighthearth
- Let both resolve, the first time drawing you a new card and the second time, drawing Divining Top back from the top of deck
- Repeat steps 14-17, drawing a new card each time (draw your deck)
- I'll leave winning with your whole deck and infinite colorless mana to your discretion, but to give you a nudge, you can play all your remaining rocks for colored mana and transition to a blink combo, or any other you have
4. Tezzeret Chain Veil Combo (Currently dropped)
Requirements:
- Aminatou on board with at least 2 loyalty
- Tezzeret, the Seeker
- open
Execution:
- Get Aminatou and Tezzeret on the field
- Activate Tezzeret's -X for 2, fetch Throne of Geth (Tezzeret 1)
- Activate Aminatou's -1, resetting Tezzeret (Aminatou 1)
- Activate Throne of Geth's ability, sacrificing itself, proliferating both Aminatou and Tezzeret
- Activate Tezzeret's -X for 4, fetch The Chain Veil (Tezzeret 1)
- Activate The Chain Veil (4 mana, 2 PW activations)
- Activate Aminatou's -1, resetting Tezzeret (Aminatou 2)
- Activate Tezzeret's -X for 1, fetch Mana Vault and tap it (Tezzeret 1) (3 Mana surplus)
- Activate Tezzeret's +1, Untap The Chain Veil and Mana Vault and tap it (Tezzeret 2) (6 Mana surplus)
- Activate The Chain Veil (3 PW activations) (2 Mana surplus)
- Activate Tezzeret's +1, Untap The Chain Veil and Mana Vault and tap it (Tezzeret 3) (5 Mana surplus)
- Activate The Chain Veil (4 PW activations) (1 Mana surplus)
- Activate Aminatou's +1, (Aminatou 3)
- Activate Aminatou's -1, resetting Tezzeret (Aminatou 4)
- Activate Tezzeret's +1 twice, resetting Mana Vault twice and The Chain Veil Once (Tezzeret 1,2)
- Activate The Chain Veil (+1 PW activations) (2 Mana surplus)
- Activate Tezzeret's +1 twice, resetting Mana Vault twice and The Chain Veil Once (Tezzeret 3,4)
- Activate The Chain Veil (+1 PW activations) (4 Mana surplus)
- If not on the first iteration, activate Tezzeret to untap The Chain Vel and Mana Vault as above to get more than +2 activations each cycle (Tezzeret 5+)
- Repeat steps 13-19, netting you infinite planeswalker activations, since that will be growing at a faster rate than the amount you use, since you can repeat step 19 increasingly more times, as the "new" Tezzeret will have the plus activations of even the older ones and Aminatou gets more than 2 activations each cycle (infinite colorless + infinite PW activations)
- Activate Tezzeret's -X for 1, fetch Altar of the Brood
- Activate Aminatou's +1
- Activate Aminatou's -1, milling each opponent for one
- Repeat steps 22-23 to mill out your opponents
NOTE: In step 21, you can also fetch any other artifact with Tezzeret to blink with Aminatou and win with, like Sensei's Divining Top or Baleful Strix to draw your deck; or if those are gone, you can just generate infinite colored mana with Aminatou and play anything in your hand or use anything on the field to blink infinitely.