
Haste
You may activate abilities of other creatures you control as though those creatures had haste.
: When you next activate an ability that isn't a mana ability this turn by spending four or more mana to activate it, copy that ability. You may choose new targets for the copy.
Build a board of creatures with powerful activated abilities, then use Dynaheir to ignore summoning sickness and copy big-mana activations for double value. You ramp into expensive activated abilities (4+ mana) and snowball card advantage, damage, or tokens until you overwhelm the table. Dynaheir's haste-granting also lets fresh creatures tap immediately, accelerating your engine.
Add more high-value activated abilities that cost 4+ mana and untap enablers like Thousand-Year Elixir and Aphetto Alchemist so you copy something every turn. Improve ramp (mana rocks, Smothering Tithe) and protection (Heroic Intervention, Lightning Greaves) to keep Dynaheir online. Lean toward a compact combo finish—pair a copyable ability with an untapper for an instant-win loop—to raise the ceiling.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
→ Infinite LTB, Infinite ETB, Infinite blinking
→ Infinite copies of creatures you control with haste, Infinite creature tokens with haste, Infinite death triggers
→ Infinite colored mana, Infinite storm count, Infinite magecraft triggers
→ Infinite ETB, Infinite LTB, Infinite blinking
→ Infinite colored mana, Infinite colorless mana
Combos via Commander Spellbook.
Same color identity (RUW), by popularity.