Harbinger of Spring [Betrayers of Kamigawa] Continuous Spell or ending phase

or ending phase

Set: Burst of Destiny Card type: Effect Monster Rarity: Secret Rare Attack: 1700 Defense: 1800 If this card is Normal or Special Summoned: You can reveal 1 "Swordsoul" card or 1 Wyrm monster in your hand

You can only use this effect of "Gravekeeper's Headman" once per turn

your battling monster's ATK/DEF become double its original ATK/DEF during that damage calculation only

Harbinger of Spring [Betrayers of Kamigawa] Continuous Spell or ending phaseSet: Betrayers of Kamigawa Type: Creature Spirit Rarity: Common Cost: {4}{G} Protection from non Spirit creatures Soulshift 4 (When this creature dies, you may return target Spirit card with mana value 4 or less from your graveyard to your hand.)