Joraga Treespeaker - The List (PLIST) A-AR [−5]: Artifacts you control become

[−5]: Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn

but then what

gain control of target creature that player controls with power less than or equal to the tapped creature's power for as long as you control Nihiloor

Sacrifice Fabled Passage: Search your library for a basic land card

Search your library and/or graveyard for a creature card with mana value X or less and put it onto the battlefield

Joraga Treespeaker - The List (PLIST) A-AR [−5]: Artifacts you control becomeLevel up {1}{G} ({1}{G}: Put a level counter on this. Level up only as a sorcery.) LEVEL 1 4 1 2 {T}: Add {G}{G}. LEVEL 5+ 1 4 Elves you control have "{T}: Add {G}{G}."