Walter, Rules Enforcer

First strike, Trample Anger Issues (This creature must attack each combat if able.)

Whenever Walter attacks, you may have him deal 1 damage to each creature that was tapped this turn. If a player violates the rules (casts a spell outside of their main phase, skips blockers, etc.), Walter gets +2/+0 until end of turn.
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“Here you go, Larry. You see what happens? You see what happens, Larry?! See what happens?! This is what happens when you find a stranger in the Alps, Larry! This is what happen