Both halves have value, sure, but this split card is charting for Death
Occasionally it still wins games that any respectable man land would also have won in that same situation and gets a bunch of respect for doing nothing special
To protect an important creature, well add in Robe of StarsRobe of Stars, and for some more recursion weve got Hall of Heliods GenerosityHall of Heliods Generosity
Overall, Irida is one of the best cards in the set, so getting a playset of her rarity bumped cards will go a long way
By then, it just serves as a 1/1 blocker
For example, against Ruby Storm, you can side out all your All Is Dusts and replace them with a copy of The Stone Brain, The Filigree Sylex, and such