Dawnsire, Sunstar Dreadnought is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Station (Tap another creature you control: Put charge counters equal to its power on this Spacecraft. Station only as a sorcery. It's an artifact creature at 20+.) 10+ | Whenever you attack, Dawnsire deals 100 damage to up to one target creature or planeswalker. 20+ | Flying

Complete guide

Dawnsire, Sunstar Dreadnought is a massive Spacecraft that rewards you for enlisting your crew to power up its systems. As you accumulate charge counters through the Station ability, this artifact transforms from a static hull into a devastating engine of war. Understanding the thresholds for its 10+ and 20+ abilities is key to dominating the battlefield.

How Station Works

Station is a specialized keyword that allows you to tap your untapped creatures to add charge counters to Dawnsire. You can only activate this ability at sorcery speed, meaning during your main phase when the stack is empty. Each time you tap a creature for Station, you add a number of charge counters equal to that creature's current power. Once the total number of charge counters reaches 20, Dawnsire automatically becomes an artifact creature in addition to its other types.

Resolution and Thresholds

The abilities of Dawnsire are cumulative based on the number of charge counters it holds. If it has 10 or more counters, its triggered ability activates whenever you declare an attack, dealing 100 damage to a single target creature or planeswalker. If it reaches 20 or more counters, it gains Flying and becomes a creature. Note that Dawnsire does not need to be the one attacking to trigger the 100-damage effect; the trigger occurs whenever you attack with any creatures.

Common Pitfalls

A common mistake is forgetting that Dawnsire only becomes a creature at 20+ counters. Before that point, it cannot attack or block, even if it has the 10+ damage trigger active. Additionally, because Station is a sorcery-speed ability, you cannot tap creatures to add counters in response to an opponent's spell or during the combat phase to suddenly turn Dawnsire into a blocker.

Strategic Timing

To maximize Dawnsire, you should prioritize tapping creatures with high power immediately during your main phase. Since the 10+ trigger is so lethal, getting to 10 counters should be your first milestone. Once you reach 20 counters and Dawnsire becomes a creature, it will be affected by summoning sickness if it entered the battlefield this turn, unless it has haste.

Interaction examples

Powering Up the Dreadnought

Solemn Simulacrum

With Dawnsire on the battlefield, you cast Solemn Simulacrum. During your main phase, you activate Dawnsire's Station ability by tapping Solemn Simulacrum. Since the Golem has 2 power, Dawnsire gains 2 charge counters. You will need to tap more creatures or use other effects to reach the 10 and 20 counter thresholds.

Surviving the Damage

The One Ring

If Dawnsire has 10 charge counters and you declare an attack, its trigger targets an opponent's creature. However, if your opponent has activated The One Ring and gained protection from everything, they are a legal player, but their permanents are not necessarily protected unless the damage targets them specifically. In this case, Dawnsire deals 100 damage to the targeted creature; The One Ring's indestructible property would be required for the permanent to survive such a massive hit.

The Ultimate Combat Move

If Dawnsire has 20 charge counters, it is a creature with Flying. When you declare Dawnsire (or any other creature) as an attacker, the 10+ ability triggers. You can deal 100 damage to a potential blocker before it even has a chance to be declared as a blocker, effectively clearing the path for your 20+ Dreadnought to strike.

Guide written with AI from the official text and rulings. Official English text prevails.