Mana Cost (if applicable) 3
I think this should be obvious in a Mandy deck, but it bears repeating
5 Sylvan Primordial It Became The Very Thing It Sought To Destroy Sylvan Primordial is sometimes seen as a 'more reasonable' Primeval Titan, but wound up being about as powerful
Its always guaranteed to hit a relevant creature in your deck, effectively replacing the equipped creature every time they die
Even [casthaven]Cloudpost[/casthaven] mandates that you have a second (specific) land in play, but [casthaven]Eldrazi Temple[/casthaven] plays [casthaven]Eldrazi Mimic[/casthaven] or a 2/2 [casthaven]Endless One[/casthaven] on turn one with no problem
Traptrix Rafflesia does just that: Once per turn, at quick effect speed, you can detach an XYZ material from this card to send any normal Hole trap card from your deck to the graveyard to have this cards effect become that trap cards effect providing that the activation conditions are met