Erhnam Djinn (Oversized) [Oversize Cards] 010 and then followed that up

and then followed that up with mana-denial cards like Stone Rain

Set: Commander 2021 Type: Sorcery Rarity: Rare Cost: {X}{U}{U} Exile the top X cards of your library

Set: Game Night: Free-for-All Type: Creature — Dragon Rarity: Rare Cost: {4}{R}{R} Flying (This creature can't be blocked except by creatures with flying or reach

Set: Innistrad: Double Feature Type: Instant Rarity: Common Cost: {U} Investigate

Erhnam Djinn (Oversized) [Oversize Cards] 010 and then followed that upSet: Oversize Cards Rarity: Rare During your upkeep, you must choose one of opponent's non wall creatures in play. Until your next upkeep, that creature gains the forestwalk ability. If opponent has no creatures, ignore this effect.