Sylvan Library (157) [Fourth Edition] Effect and if you Link Summon

and if you Link Summon it with a big enough monster

Unsummon cannot be played during the damage-dealing phase of an attack

Link Arrows: TCGplayer Tip: GIVE THAT MAN HIS HORNS BACK

This can lead to all sorts of shenanigans

Destroys any one land

Sylvan Library (157) [Fourth Edition] Effect and if you Link SummonRarity: R #: 157 Card Type: Enchantment Description: You may draw two extra cards during your draw phase. If you do so, put two of the cards drawn this turn back on top of your library (in any order) or pay 4 life per card not replaced. Effects that prevent or redirect damage cannot be used to counter this loss of life.