How can you create a combo with Ovika, Enigma Goliath, Invasion of Segovia // Caetus, Sea Tyrant of Segovia, Sweet Oblivion, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Ovika, Enigma Goliath, Invasion of Segovia // Caetus, Sea Tyrant of Segovia, Sweet Oblivion, Phyrexian Altar

Color identity: UR
Mana cost: {2}{U}{U} (at most)
Steps:
  1. Cast Sweet Oblivion by paying {1}{U} reduced by the number of creatures you tap as you cast it, targeting yourself.
  2. Ovika triggers, creating two 1/1 Phyrexian Goblin creature tokens.
  3. Resolve Sweet Oblivion, causing you to mill four cards.
  4. Cast Sweet Oblivion from your graveyard for its escape cost by tapping the two Phyrexian Goblins, and paying {1}{U} reduced by the number of other creatures you tap as you cast it, as well as exiling four other cards from your graveyard, targeting yourself.
  5. Ovika triggers, creating two 1/1 Phyrexian Goblin creature tokens.
  6. Activate Phyrexian Altar by sacrificing the two tapped Phyrexian Goblins, adding {1}{U}.
  7. Resolve Sweet Oblivion, causing you to mill four cards.
  8. Repeat from step 4.[END OF COMBO STEPS]

Result:
  - Exile your library
  - Infinite self-mill
  - Near-infinite death triggers
  - Near-infinite enters the battlefield
  - Near-infinite leaves the battlefield
  - Near-infinite magecraft triggers
  - Near-infinite sacrifice triggers
  - Near-infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Ovika, Enigma Goliath must be on the battlefield
  - Invasion of Segovia // Caetus, Sea Tyrant of Segovia must be on the battlefield
  - Sweet Oblivion must be in your hand
  - Phyrexian Altar must be on the battlefield
[END OF COMBO PREREQUISITES]
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