mtg double sided card Double-Faced Substitute — Zendikar Rising Substitute Cards (SZNR) | Card Double sided card help :

But to win with it is slightly harder, and you'll need six types of permanents as well as five colors of permanents

This is also an enter the battlefield trigger so it will be doubled by Panharmonicon as well as trigger of tokens, but also some sneaky triggers from the 4 artifact lands that are in the deck

Rhonas is a three-mana 5/5 in Green with deathtouch, indestructible, and the ability to target your leader for three mana and then pump it +2/+0 and give it trample

Not only is this an immensely powerful activated ability, but the fact that Ulamogs Dreadsire has vigilance means you can stay on the attack while also building up your board

Rootwire Amalgam In a world of giant robots, Rootwire Amalgam sets itself apart as the giant-ist: a 15/15 you can attack with on turn five