Cradle of Corruption enters tapped. Whenever a creature dies, put a creation counter on Cradle of Corruption. {T}, Remove ten creation counters from Cradle of Corruption and sacrifice it: Put up to two target creature cards from graveyards onto the battlefield under your control. Activate only as a sorcery.
Elrayin, the Manaroot enters tapped. Whenever you tap another land for mana, put a creation counter on Elrayin. {T}, Remove ten creation counters from Elrayin and sacrifice it: Untap all lands target player controls.
Mosecf, the Sunseeker's Path enters tapped. Whenever a creature you control attacks, put a creation counter on Mosecf. {T}, Remove ten creation counters from Mosecf and sacrifice it: Creatures you control get +2/+2 and gain vigilance until end of turn. Activate only as a sorcery.
Ralora, Unforgiving Depths enters tapped. Whenever a source deals damage to you, put a creation counter on Ralora. {T}, Remove ten creation counters from Ralora and sacrifice it: It deals 10 damage to target player or planeswalker.
Sea Of Skies Beyond enters tapped. Whenever you cast a noncreature spell, put a creation counter on Sea Of Skies Beyond. {T}, Remove ten creation counters from Sea Of Skies Beyond and sacrifice it: Shuffle your hand into your library, then draw five cards.