Infinite card drawInfinite draw triggersNear-infinite +1/+1 counters on a creatureNear-infinite creature ETBNear-infinite creature LTBNear-infinite death triggersNear-infinite creature sacrifice triggers
How it works
Activate Phantom Train by sacrificing River Kelpie.
When River Kelpie dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Vizier of Remedies.
When River Kelpie enters, its first ability triggers, causing you to draw a card.