Limiting its trigger to once per turn prevents it from becoming overwhelming, yet the card remains a reliable draw source in any counter-based strategy
Aragorn, the Uniter More often than not, Aragorn, the Uniter is used as an aggressive creature due to its focus on offensive strategies, with abilities that trigger whenever you cast red, white, or green spells
You can't put a Teferi's Moat out there for a long, long time against decks unknown with the knowledge that an enchantment removal or bounce spell will almost certainly kill you unless you are very brave, and once you start down the Moat road it's hard to stop
Summon: Primal Odin asks you whether you would like a Phlage for two turns, or maybe more, its okay, you wont lose the game if you reanimate it
Whatever deck you plan to build, this is likely to be worth including