Even in the 99 of a Landfall deck, Omnath will do a ton of work and represent a must-kill threat, lest it provide an "army in a can" and take over a game by itself
It's not
Both are four-mana enchantments that hose a specific enemy color
Giving it to them forever, of course
Every dual land comes with a cost or trade-off: Life payments Shock Lands cost 2 life, Pain Lands cost 1 life per colored mana Tempo loss Tapped entries delay plays by one turn Deck construction requirements Check Lands need typed lands, Tango Lands need basics Conditional reliability Fast Lands fail late game, Battlebond Lands fail in 1v1 To choose the right balance, make sure to consider the format, deck speed, and overall strategy
However, an effect that lets you return a land card from your graveyard to your hand won't let you return Garden of Freyalise to your hand, as that card has only its front face's characteristics while in the graveyard