Undead Warriors

When Undead Warriors enters the battlefield,
you may pay {1}{b} and 2 life. If you do, return all other creatures named Undead Warriors from your graveyard to the battlefield tapped.
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{b}: Regenerate Undead Warriors. (The next time
this creature would be destroyed this turn, it isnt.
Instead tap it, remove all damage from it, and remove
it from combat.)