Royal Herbalist + Light of Promise + Cryptic Trilobite

Prerequisites

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Steps

1. 1Activate Royal Herbalist by paying and exiling the top card of your library, causing you to gain 1 life.
2. 2Cryptic Trilobite triggers, putting a +1/+1 counter on it.
3. 3Activate Cryptic Trilobite by removing a +1/+1 counter from it, adding that can only be spent to activate abilities.
4. 4Repeat.

Effects

• Exile your library
• Near-infinite lifegain
• Near-infinite lifegain triggers