Youthful Knight is a 2/1 with first strike, so if it was blocked by Alpine Watchdog, Youthful Knight would deal its two damage first, destroying the Alpine Watchdog before the Youthful Knight would take damage
It wasnt the rarity of this set of cards alone that made Exodia so appealing
"Red Rising" re-summons "Synkron", while "Synkron" can add back "Vision"
1/1 Soldier creature for Elspeth, Sun's Champion, Elspeth's Talent, Hero of Bladehold and Keeper of the Accord
If a creature with persist that has +1/+1 counters on it receives enough -1/-1 counters to cause it to be destroyed by lethal damage or put into its owner's graveyard for having 0 or less toughness, persist won't trigger and the card won't return to the battlefield
While another suggested to 'pull an Uno Reverse and rebuy it!'