Matoya, Archon Elder is a fantastic mono-blue Commander that, with the right build, can generate an absurd amount of card draw
For example, if two creatures you control with lifelink deal combat damage at the same time, Minwu's last ability will trigger twice
Even though this is an instant, its best played during your main phase so you can tap both of the islands to float 2 mana and immediately replay one
I imagine cards with hexproof and indestructible counters are invaluable for this strategy
After all, its not like we have cards that casually give all your creatures every creature type Oh wait we do: [[Maskwood Nexus]], [[Conspiracy]], [[Arcane Adaptation]] just to name a few
Ultima, Origin of Oblivion Rating: 4/10 Five mana for a 4/4 flying creature that any deck can play sounds perfectly reasonable, but Ultima, Origin of Oblivions other abilities dont seem all that good in Limited