Selvala by tapping it, causing each player to reveal the top card of their library, then causing you to add ({G} magic symbol) and gain 1 life for each nonland card revealed this way, then causing each player to draw a card.
Tolarian Kraken triggers, causing you to pay ({1} magic symbol) to untap
Selvala.
Repeat.
NOTE: If everyone would happen to reveal a land,
Selvala makes no mana, and therefore you will need to supplement mana to pay for
Tolarian Kraken's trigger if you have no mana in your mana pool.
Results
Near-infinite card draw for all players.
Near-infinite draw triggers for all players.
Near-infinite green mana.
Near-infinite lifegain.
Near-infinite lifegain triggers.
Metadata
Bracket tag
SpicyBracket 3-4+
Probably 3 or 4, but hard to classify
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1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.