Such a deck will surely be in the market for an additional discard outlet that could refill a hand in the lategame
If you get the option to grab him in a Legacy Cube draft, snap him up
Its no secret that card advantage is key to winning games of Magic, and this card gives you that consistently, at a fair price

Astrologian's Planisphere Rarity: Rare TYPE: Artifact SUBTYPE: Equipment CMC: 2 Mana cost: USD: $4.34 EUR: 3.90 TIX: 0.00 EDHREC RANK: 5649 Job select (When this Equipment enters, create a 1/1 colorless Hero creature token, then attach this to it.) Equipped creature is a Wizard in addition to its other types and has "Whenever you cast a noncreature spell and whenever you draw your third card each turn, put a +1/+1 counter on this creature." Diana Equip Astrologian's Planisphere Rarity: Rare TYPE: Artifact SUBTYPE: Equipment CMC: 2 Mana cost: USD: $0.29 EUR: 0.29 TIX: 0.09 EDHREC RANK: 5649 Job select (When this Equipment enters, create a 1/1 colorless Hero creature token, then attach this to it.) Equipped creature is a Wizard in addition to its other types and has "Whenever you cast a noncreature spell and whenever you draw your third card each turn, put a +1/+1 counter on this creature." Diana Equip Auron's Inspiration Rarity: Uncommon TYPE: Instant SUBTYPE: - CMC: 3 Mana cost: USD: $0.17 EUR: 0.08 TIX: 0.03 EDHREC RANK: 18422 Attacking creatures get +2/+0 until end of turn

For the purpose of Temple of Power's last ability, you need to have controlled the red source that dealt noncombat damage only at the time that the damage was dealt