The second mode drains your opponents, and the third gives you card advantage for each opponent with one or fewer cards in hand, which is relevant if your deck is built around making your opponents discard their hand
Its excellent with cards that make you untap your permanents every turn, or that double up mana productionhi Nissa, Who Shakes the World
Elvish Commanders All decks in the Commander Legends set need a legendary commander to lead them, and the Elf deck has four options
Card Name Mana Cost Type Creature Bird Rarity Mythic Rare rules Text You may look at the top card of your library any time.You may play lands and cast Bird spells from the top of your library.If a land or Bird you control entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time
Any deck that wants card draw and happens to be running enchantments would be very happy to run this- control decks with enchantment-based removal, for instance
They go into a kind of storage bank, like poison counters and rad counters