That wont matter often, but it does mean you always get the maximum amount of reduction from your effects, regardless of taxation effects on board
Storm Crow Rarity: Common TYPE: Creature SUBTYPE: Bird CMC: 2 Mana cost: USD: $0.12 EUR: 0.14 TIX: 0.00 EDHREC RANK: 20299 (1/2) Flying (This creature can't be blocked except by creatures with flying or reach.) Storm Crow Rarity: Common TYPE: Creature SUBTYPE: Bird CMC: 2 Mana cost: USD: $0.18 EUR: 0.17 TIX: 0.00 EDHREC RANK: 20299 (1/2) Flying (This creature can't be blocked except by creatures with flying or reach.) Storm Elemental Rarity: Uncommon TYPE: Creature SUBTYPE: Elemental CMC: 6 Mana cost: USD: $0.22 EUR: 0.17 TIX: 0.04 EDHREC RANK: 31230 (3/4) Flying , Exile the top card of your library: Tap target creature with flying
Riku of Two Reflections Since Riku of Two Reflectionss ability triggers when a creature enters, you can use cards like Thassa, Deep-Dwelling and Essence Flux to generate many copies of one card
Casting Cost: Card Type: Legendary Planeswalker - Davriel Card Text: At the beginning of each opponent's upkeep, if that player has one or fewer cards in hand, Davriel, Rogue Shadowmage deals 2 damage to them
The first one came in the first box
Theres not much more you could ask from a mono-green commander, which are usually best when supporting big stompy creatures