Rildan, The Great Equalizer

Partner with Darien, the Great Protector
This spell cannot be countered
If a spell would be cast without spending mana, exile it instead. Players cannot search their libraries except through this cards effect. At the beginning of each players upkeep, that player may search their library for a land, and put it into their hand. Players cannot play more than one land each turn. If a non token permanent would enter the battlefield without being cast, exile it instead. Players cannot create copies of spells