Abolish is happy to take one of them off your hands to destroy a problematic artifact or enchantment
Their trigger reads, Whenever a land enters the battlefield under your control, you may gain control of target creature for as long as you control Roil Elemental. So, basically, as long as you can keep Roil Elemental alive, you can absolutely steal every other Creature on the battlefield
Card images via Scryfall
Also note lifelink to gain plus perma-boosts and first strike to smash first and make blocking rough
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