You can also cast a Core and cast an Apprentice Wizard , draw a spell, then follow up with Sinkhole to set your opponent back
Lastly, from the Universes Beyond: Dungeons & Dragons Secret Lair, you can run Xenk, Paladin UnbrokenXenk, Paladin Unbroken as yet another functional Ethereal ArmorEthereal Armor
Not every green creature needs it
Destroying three lands and having a big creature in play is a way to get ahead, and you can turn excess lands into beaters, too
Legendary Wizard Attaque de requins - Shark attack - Eph?m?re - Instant Connaissances abouties - Accomplished Knowledge - Rituel - Sorcery Didier Ridou - Didier Ridou - Cr?ature: Archimage l?gendaire - Creature
This effect also exists on Arena, but Cliffs taps for mana, which is the difference between unplayable and incredibly useful