Miren, the Moaning Well [Saviors of Kamigawa] Continuous Trap How could they improve it

How could they improve it

"Mystic shadow

Set: Rise of the Duelist Card type: Xyz/Effect Monster Rarity: Ultra Rare Attack: 500 Defense: 2000 2 Level 2 monsters You can detach 1 material from this card

Some lycanthropes wish they could abandon their weak human shapes and revel in the power of the wolf

Set: Speed Duel: Match of the Millennium Card type: Normal Spell Rarity: Common Add 1 Level 5 or higher Normal Monster from your Deck to your hand

Miren, the Moaning Well [Saviors of Kamigawa] Continuous Trap How could they improve itSet: Saviors of Kamigawa Type: Legendary Land Rarity: Rare {T}: Add {C}. {3}, {T}, Sacrifice a creature: You gain life equal to the sacrificed creature's toughness.