Minsc & Boo, Timeless Heroes
Legendary Planeswalker — Minsc
When Minsc & Boo enters and at the beginning of your upkeep, you may create Boo, a legendary 1/1 red Hamster creature token with trample and haste.
+1: Put three +1/+1 counters on up to one target creature with trample or haste.
−2: Sacrifice a creature. When you do, Minsc & Boo deals X damage to any target, where X is that creature's power. If the sacrificed creature was a Hamster, draw X cards.
Minsc & Boo, Timeless Heroes can be your commander.
Illustrated by
Commander Legends: Battle for Baldur's Gate#363MythicEnglishLegality
Rulings
Minsc & Boo's second loyalty ability won't deal extra damage if you shout "Go for the eyes, Boo!" but it definitely can't hurt.
If there is no legal target for the reflexive trigger in Minsc & Boo's second loyalty ability, or if the target is illegal as the ability tries to resolve, you will not draw any cards even if the sacrificed creature was a Hamster.